属非细胞型微生物的是()
A．立克次体
B．衣原体
C．真菌
D．支原体
E．病毒
参考答案：E
下图所示的实验操作中正确的是[ ]
A.
B.
C.
D.
31. A warm thought suddenly came to me _______ I might use the pocket money to buy some flowers for my mother’s birthday.
A．if
B．when
C．that
D．which
