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【单选题】
核酸的基本组成单位是A.
磷酸和核糖
B.
核苷和碱基
C.
单核苷酸
D.
含氮碱基
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反馈参考答案：
举一反三
【简答题】What is the man doing? A. Checking the weather. B. Looking for something. C. Doing exercise.
【判断题】Unit2 the county inspector is a man responsible for checking children's schoolwork
A.
正确
B.
错误
【单选题】下列选项中哪一个是提供了仅保存自人特定日期和时间之后或自从上次保存操作之后更改过的对象的备份方式?( )
A.
普通备份
B.
增量备份
C.
差异备份
D.
每日备份
E.
副本备份
F.
磁盘备份
【单选题】When is the man checking in? W: Good morning. Can I help you? M: Yes. I’d like a double room. W: How many nights do you plan to stay with us? M: Three. I’ll be checking out Friday morning.
A.
Friday.
B.
Thursday
C.
Tuesday
D.
Wednesday
【简答题】奥拓内燃机燃烧的介质是()
【单选题】听力原文：(A) The woman is checking her watch. (B) They are waving to the train. (C) The man on the platform. is reading. (D) The train is coming into the station.
A.
B.
C.
【单选题】The man is ________
A.
renting a car
B.
getting a passport
C.
checking into a hotel
D.
visiting New York
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