皮皮学，免费搜题
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【单选题】
控制哮喘急性发作的首选药物为A.
糖皮质激素
B.
ß2受体激动剂
C.
白三烯调节剂
D.
茶碱类
E.
抗胆碱药
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反馈参考答案：
举一反三
【单选题】As the chairman of the students' union, Thomas was said ______ other students in need.
A.
to help
B.
to be helping
C.
to have helped
D.
to have been helped
【简答题】At school the students need to increase their knowledge in an organized way and __________________(获得足够的科学词汇来进行有效的学术交际)
【单选题】-Do you have enough students to clean the laboratory? -No, I think we need ___________ students. [ ]
A.
another
B.
two others
C.
more two
D.
two more
【判断题】Students need to buy insurance by themselves once enrolled in British universities and it is a compulsory requirement for every student.()
A.
正确
B.
错误
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