问题 选择题

An old man asked Tom which            of a newspaper he would like to read.

A.editor

B.editorial

C.edit

D.edition

答案

答案:D

选择题
[     ]

 
   a   
C  
A
Al
AlCl3
Al(OH)3
B
NO
NO2
HNO3
C
Si
SiO2
H2SiO3
D
S
SO3
H2SO4
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