题目内容

()污染的典型特征是细胞培养液短期内变黄且明显浑浊。()

A. 支原体
B. 病毒
C. 细菌
D. 真菌

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肉眼观察细胞培养物,短期内未见培养液混浊,但在培养液中有白色或浅黄色漂浮物,可判断为()污染。

A. 支原体
B. 病毒
C. 细菌
D. 真菌

镜下观察细胞培养物,可见丝状、管状或树枝状菌丝,并悬浮飘荡在培养液中,可判断为()污染。

A. 支原体
B. 病毒
C. 细菌
D. 真菌

quote, cite & repeatPut into each gap one of the above words. Change the form where necessary.1.I promised not to __________ the secret.2.The judicial minister__________the latest crime figures as proof of the need for strengthening the comprehensive administration of social public order.3.You may__________a passage from the book.4.Be careful or somebody will overhear what you say and may__________it afterwards.

specific, special, especial & particularPut into each gap one of the above words. Change the form where necessary.1. 我需要一个明确的回答。 (=I want a __________ answer.)2. 没有什么特别的。(=Nothing __________.)3. 故事就发生在那一天。 (=The story happened on that __________ day.)4. 他特别不喜欢流行音乐。 (=He has an __________ dislike for pop music.)

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