The labiodental sounds in the following are__________.
A: and [b]
B: [f] and [v]
C: [θ] and [ð]
D: [k] and [g]
A: and [b]
B: [f] and [v]
C: [θ] and [ð]
D: [k] and [g]
举一反三
- All of the following pairs of sounds except ______ are distinguished from each other by the feature "+voiced". A: /p/ and /b/ B: /t/ and /d/ C: /k/ and /g/ D: /m/ and /n/
- In[6]:=Sort[{K,g,U,v,1,2,V}Out[6]= A: {1,2,g,K,U,v,V} B: {g,K,U,v,V,1,2} C: {1,2,g,v,K,U,V} D: {V,v,U,K,g,2,1}
- Example of fricative consonant sounds are _______. A: /f/ /v/ /s/ /z/ B: /g/ /l/ /h/ C: /n/ /m/ /s/ D: /t/ /d/ /p/
- 已知反应：2NO（g）+Br（g）=2NOBr（g）的反应历程是 （1）NO（g）+Br2（g）=NOBr2（g）快 （2）NOBr2（g）+NO（g）=2NOBr（g）慢 则反应的速率方程应为：（） A: V=k[NO] B: V=k[NOBr][NO] C: V=k[NO][Br] D: V=k[NO][Br]
- 管路中流速的计算公式为（）。 A: v=G／F B: v=Q／F C: v=Q•F D: v=G•F