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【单选题】
空气采样的基本原则，包括选择合理的（）A.
采样方法
B.
采样地点
C.
采样频率
D.
采样时间与品数
E.
全包括
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举一反三
【简答题】Please write 10 English Sentences you learned from the course.
【单选题】三 Mike is a 12⁃year⁃old boy. He 21 from New York. He is in Class 3, Grade 7. Mr Black is his class teacher. He is a good teacher. All the students of 22 class like him very much. There are for...
A.
are
B.
be
C.
have
D.
has
【简答题】II . 单项选择 从每小题所给的 A 、 B 、 C 三个选项中,选出可以填入空白处的正确答案。(每小题 1 分,满分 15 分) 21. Joe is working harder, so his garden is than any other’s in the city. A. beautiful B. more beautiful C. the most beautiful 22. I ...
【简答题】An armless pianist who plays with his toes has won the first series of China’s version of the internationally popular TV talent show, “China’s Got Talent.” Liu Wei, a 23-year-old Beijing-born pianist,...
【简答题】My friend John always has something to tell me. He knows so much that 21 men have to have older and more worldly wise men to tell them, 22 , who to trust, how to care for others and how to live life 2...
【单选题】He has lost the key to the drawer __________ the papers are kept.
A.
where
B.
in which
C.
under which
D.
which
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