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举一反三
- 下列选项中,设置字体为微软雅黑的写法,正确的是() A: font-style:"微软雅黑"; B: font-family:"微软雅黑"; C: font-style: Microsoft YaHei; D: font-family:Microsoft YaHei;
- 2.使用font-family设置字体时,以下书写正确的是() A: body{font-family:Arial,"微软雅黑","宋体","黑体";} B: body{font-family:"微软雅黑","宋体","黑体",Arial;} C: body{font-family:"TimesNewRoman";} D: body{font-family:TimesNewRoman;}
- vlist = list(range(5))for e in vlist:print(e,end=",")上面代码的输出结果是( ) A: 0;1;2;3;4; B: 0 1 2 3 4 C: 0,1,2,3,4, D: [0, 1, 2, 3, 4]
- <span style="color: rgb(76, 76, 76); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">管理者有时需对企业某部门的经营活动方向进行选择,可采用______和 ______两种方法。</span>
- <span style="color: rgb(76, 76, 76); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;">如果决策涉及的问题对组织来说非常紧迫,则这样的决策被称为______决策。</span>
内容
- 0
下列向量组中,( )是线性无关向量组。 A: (1, 1, 0), (0, 2, 0), (0, 0, 3) B: (1, 2), (3, 0), (5, 1) C: (2, 6, 0), (3, 9, 0), (0, 0, 2) D: (1, 2), (--3, 0), (5, 1)
- 1
下面( )是ID的样式规则定义。 A: TR{clore:red;font-family:"隶书";font-size:24px;} B: H2{color:red;font-family:"隶书";} C: D: grass{color:green;font- family:"隶书"; font-size:24px;} E: P{background-color: F: CCFF33;text-align:left;}
- 2
下列量子数中哪一组的亚层中含有最多的电子: A: n = 2 ,l = 1 B: n = 3 ,l = 2 C: n = 4 ,l = 3 D: n = 5 ,l = 0 E: n = 5 ,l = 3 ,m = +1
- 3
给定变量 A=3 以下代码能正确输出 305 的是 A: echo $((100 * A + 5)) B: echo $((100 * $A + 5)) C: echo "100*$A+5" | bc -l D: echo "100*A+5" | bc -l
- 4
已知变量s的值是一个字符串,以下能用于判断s这个字符串是否以字符“0”开头,且以字符“9”结尾的表达式为: A: s[0]==0 and s[9]==9 B: s[0]="0" or s[-1]="9" C: s[0]=="0" and s[-1]=="9" D: s[0]=="0" or s[-1]=="9"