题目内容

下列家禽传染病不能采用HA-HI试验诊断的为()

A. 传染性喉气管炎
B. 新城疫
C. 鸡减蛋综合征
D. 鸡毒支原体感染
E. 禽流感

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Virtual booksellers present a threat to public morality because they______.

A. profit from books on terror and violence
B. have lost reliable quality guardians
C. neglect works of classical literature
D. escape the supposed responsibility for book content

用_____可以做化学分析。

The authors attitude towards Amazon s censorship on book content can be best described as______.

A. disapproval
B. supportive
C. scornful
D. skeptical

We can conclude from the third paragraph that Amazon______.

A. highly valued its clients" purchasing decisions
B. strictly complied with the censorship rules
C. frequently changed its attitude towards individual choice
D. rigorously executed its terms of service

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