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【单选题】
克拉霉素为下列哪种结构类型的抗生素A.
大环内酯类
B.
氨基苷类
C.
β- 内酰胺类
D.
四环素类
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反馈参考答案：
举一反三
【简答题】阅读理解。 Komal loved playing baseball very much. She always wanted to be a baseball player in her school team. She practiced nearly every day, even on rainy days. Her grandfather lived in another city....
【单选题】听下面一段独白,回答第 17 至第 20 四个小题。 17. Who might be most interested in Time Edge? A. Parents. B. Teachers. C. Students.
A.
1
B.
2
C.
3
【单选题】听下面一段独白,回答第 17 至第 20 四个小题。 17. What is the talk mainly about?
A.
The history of the school.
B.
The courses for the term.
C.
The plan for the day.
【单选题】My father likes sports. He is a baseball ______________. [ ]
A.
playing
B.
players
C.
player
【单选题】听下面一段独白,回答第 17 至第 20 四个小题。 17. What did the speaker do in Spain?
A.
He visited his Spanish friends.
B.
He attended a meeting.
C.
He went sightseeing.
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