题目内容

53. Do you know what kind of food __ eat?

A. a deer
B. deers
C. deer
D. this deer

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54. This is ____ to an end.

A. means
B. a mean
C. a means
D. some mean

55. ____ went by without a word from him.

A. Weeks after weeks
B. A week after a week
C. Week after week
D. Weeks after other weeks

传染性非典型性肺炎的病原体为:()

A. 轮状病毒
B. 冠状病毒
C. 衣原体
D. 支原体

艾滋病不可以通过下列哪种方式传播:()

A. 共用针头或注射器
B. 性接触
C. 日常生活接触
D. 母婴传播