• 2022-06-15 问题

    A.How’sthatgoing?B.Wouldyouliketocomewithus?<br/>C.Whenandwhereshallwemeet?D.Seeyouthen.<br/>E.Whereareyougoingtohaveit?F.Wecangotherebybike.<br/>G.Whydon’twecomeearly?<br/><br/>Lina:WearegoingtohaveapicniconSunday.<br/>Paul:Oh,really?<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>1</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Bytheriver<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>2</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Paul:OK.Whynot?Howcanwegetthere?<br/>Lina:<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>3</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Paul:Goodidea<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>4</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Wewillmeetatmyhomeat8:30inthemorning.<br/>Paul:OK<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>5</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Seeyou.

    A.How’sthatgoing?B.Wouldyouliketocomewithus?<br/>C.Whenandwhereshallwemeet?D.Seeyouthen.<br/>E.Whereareyougoingtohaveit?F.Wecangotherebybike.<br/>G.Whydon’twecomeearly?<br/><br/>Lina:WearegoingtohaveapicniconSunday.<br/>Paul:Oh,really?<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>1</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Bytheriver<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>2</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Paul:OK.Whynot?Howcanwegetthere?<br/>Lina:<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>3</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Paul:Goodidea<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>4</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Wewillmeetatmyhomeat8:30inthemorning.<br/>Paul:OK<spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span>5</span><spanstyle="text-decoration:underline;"><spanstyle="text-decoration:underline;"></span></span><br/>Lina:Seeyou.

  • 2022-06-15 问题

    从所给的选项中选择恰当的句子补全对话(此题有两个多余选项)。<br/>A.How’sthatgoing?<br/>B.Wouldyouliketocomewithus?<br/>C.Whenandwhereshallwemeet?&nbsp;<br/>D.Seeyouthen.<br/>E.Whereareyougoingtohaveit?&nbsp;<br/>F.Wecangotherebybike.<br/>G.Whydon’twecomeearly?<br/>Lina:WearegoingtohaveapicniconSunday.<br/>Paul:Oh,really?<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>1</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Bytheriver.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>2</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Paul:OK.Whynot?Howcanwegetthere?<br/>Lina:<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>3</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Paul:Goodidea.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>4</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Wewillmeetatmyhomeat8:30inthemorning.<br/>Paul:OK.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>5</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Seeyou.<br/>

    从所给的选项中选择恰当的句子补全对话(此题有两个多余选项)。<br/>A.How’sthatgoing?<br/>B.Wouldyouliketocomewithus?<br/>C.Whenandwhereshallwemeet?&nbsp;<br/>D.Seeyouthen.<br/>E.Whereareyougoingtohaveit?&nbsp;<br/>F.Wecangotherebybike.<br/>G.Whydon’twecomeearly?<br/>Lina:WearegoingtohaveapicniconSunday.<br/>Paul:Oh,really?<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>1</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Bytheriver.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>2</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Paul:OK.Whynot?Howcanwegetthere?<br/>Lina:<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>3</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Paul:Goodidea.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>4</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Wewillmeetatmyhomeat8:30inthemorning.<br/>Paul:OK.<spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span>5</span><spanstyle="text-decoration:underline"><spanstyle="text-decoration:underline"></span></span><br/>Lina:Seeyou.<br/>

  • 2022-06-30 问题

    氢原子轨道的能级高低是 A: E(1s)<E(2s)<E(2p)<E(3s)<E(3p)<E(3d)<E(4s) B: E(1s)<E(2s)<E(2p)<E(3s)<E(3p)<E(4s)<E(3d) C: E(1s)<E(2s)=E(2p)<E(3s)=E(3p)<E(4s)<E(3d) D: E(1s)<E(2s)=E(2p)<E(3s)=E(3p)=E(3d)<E(4s)

    氢原子轨道的能级高低是 A: E(1s)<E(2s)<E(2p)<E(3s)<E(3p)<E(3d)<E(4s) B: E(1s)<E(2s)<E(2p)<E(3s)<E(3p)<E(4s)<E(3d) C: E(1s)<E(2s)=E(2p)<E(3s)=E(3p)<E(4s)<E(3d) D: E(1s)<E(2s)=E(2p)<E(3s)=E(3p)=E(3d)<E(4s)

  • 2021-04-14 问题

    E→ E + E | E - E | E * E | E / E | ( E ) | i 下面的推导过程是句子i+i*i的规范推导的是: E=>E*E=>E*i=>E+E*i=>E+i*i=>i+i*i|E=>E*E=>E*i=>E+E*i=>i+E*i=>i+i*i|E=>E+E=>E+E*E=>E+E*i=>E+i*i=>i+i*i|E=>E+E=>E+E*E=>E+i*E=>E+i*i=>i+i*i

    E→ E + E | E - E | E * E | E / E | ( E ) | i 下面的推导过程是句子i+i*i的规范推导的是: E=>E*E=>E*i=>E+E*i=>E+i*i=>i+i*i|E=>E*E=>E*i=>E+E*i=>i+E*i=>i+i*i|E=>E+E=>E+E*E=>E+E*i=>E+i*i=>i+i*i|E=>E+E=>E+E*E=>E+i*E=>E+i*i=>i+i*i

  • 2022-06-19 问题

    下列情况中,属于饱和状态的是( )。 A: E≠e B: E>e C: E=e D: E<e

    下列情况中,属于饱和状态的是( )。 A: E≠e B: E>e C: E=e D: E<e

  • 2022-10-26 问题

    一维、二维、三维k空间中,能级密度Z(E)与能量E之间的关系分别对应满足( ) A: Z(E)=常数、Z(E)∝√E、Z(E)∝1/√E B: Z(E)∝√E、Z(E)=常数、Z(E)∝1/√E C: Z(E)∝√E、Z(E)∝1/√E、Z(E)=常数 D: Z(E)∝1/√Z(E)=常数、Z(E) ∝√E

    一维、二维、三维k空间中,能级密度Z(E)与能量E之间的关系分别对应满足( ) A: Z(E)=常数、Z(E)∝√E、Z(E)∝1/√E B: Z(E)∝√E、Z(E)=常数、Z(E)∝1/√E C: Z(E)∝√E、Z(E)∝1/√E、Z(E)=常数 D: Z(E)∝1/√Z(E)=常数、Z(E) ∝√E

  • 2022-11-01 问题

    掺铒光纤放大器(EDFA)中Er A: E吸收>E激发+E自发 B: E自发>E吸收+E激发 C: E激发>E自发+E吸收 D: E自发<E吸收+E激发

    掺铒光纤放大器(EDFA)中Er A: E吸收>E激发+E自发 B: E自发>E吸收+E激发 C: E激发>E自发+E吸收 D: E自发<E吸收+E激发

  • 2022-06-07 问题

    下列关于停留时间分布密度函数的描述,正确的是 。 A、E(φ)=E(τ) B、E(φ)=τE(τ) C、E(τ)=τE(φ) D、以上均不正确 A: E(φ)=τE(τ) B: E(φ)=E(τ) C: E(τ)=τE(φ) D: 以上均不正确

    下列关于停留时间分布密度函数的描述,正确的是 。 A、E(φ)=E(τ) B、E(φ)=τE(τ) C、E(τ)=τE(φ) D、以上均不正确 A: E(φ)=τE(τ) B: E(φ)=E(τ) C: E(τ)=τE(φ) D: 以上均不正确

  • 2022-07-01 问题

    语句while(!e);中条件!e等价于( )。A:e==0 B:e!=1 C:e!=0 D:-e A: e==0 B: e!=1 C: e!=0 D: -e

    语句while(!e);中条件!e等价于( )。A:e==0 B:e!=1 C:e!=0 D:-e A: e==0 B: e!=1 C: e!=0 D: -e

  • 2022-06-07 问题

    以下哪个文法存在二义性( ) A: E → E+T | TT → T*F | FF → (E) | i B: S → aSaS → bSbS → ε C: E → E + E E → E * E E → ( E ) E → i D: S → aSS → bSS → ε

    以下哪个文法存在二义性( ) A: E → E+T | TT → T*F | FF → (E) | i B: S → aSaS → bSbS → ε C: E → E + E E → E * E E → ( E ) E → i D: S → aSS → bSS → ε

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