题目内容

下列哪些是细菌的特殊结构

A. 细胞膜
B. 荚膜
C. 芽胞
D. 质粒

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更多问题

细菌在适宜条件下培养,在()期时形态典型

There are _____ on the cupboard.

A. plates
B. plate
C. a plate
D. the plate

Which glasses? _______ glasses?

A. That
B. These
C. This
D. A

Give _____ these ice creams.

A. their
B. they
C. them
D. we

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