目前戊肝病毒有()个血清型。
参考答案:1
The book is so boring. I can’t find _______________ in it.
A.something interesting
B.interesting something
C.anything interesting
D.interesting anything
将一处整治工程分成几个坝(垛)组,每组一般()道坝(垛)自成一个小弯道,各组之间有的还留有一段空档不修工程,各组相互配合。
A.1~2
B.2~3
C.3~5
D.6