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【单选题】
主要通过性接触传播的传染病是A.
流行性感冒
B.
艾滋病
C.
细菌性痢疾
D.
流行性乙型脑炎
E.
疟疾
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反馈参考答案：
举一反三
【单选题】听力原文：M: How's the response to our advertisement for supervisors? W: Well, we have about forty applications, but there's hardly anyone with experience. M: I think we should contact an agency to help us...
A.
Work bonuses.
B.
Marketing policies.
C.
Production figures.
D.
Hiring new staff.
【简答题】两亲性物质
【单选题】We should do more such exercises in the future，I think，_____ those we did yesterday.
A.
as
B.
like
C.
about
D.
than
【单选题】We must put _____ into practice.
A.
that we have learned
B.
what we have learned
C.
that have we learned
【单选题】She didn’t receive the application form; it _________to the wrong address. A) sent B) be sent C) was sent D) being sent
A.
A) sent
B.
B) be sent
C.
C) was sent
D.
C) was sent D) being sent
【单选题】Identify the sentence that uses the correct verb tense or tenses.
A.
We was just leaving.
B.
We were just leaving.
C.
We just been leaving.
D.
We is just leaving.
【单选题】对于表面活性物质的基本性质，下列描述不正确的是( )。
A.
表面活性物质都是由亲水性极性基团和憎水性的非急性集团所组成。
B.
表面活性物质定向排列在任意两相的，降低了表面张力。
C.
各种表面活性物质分子具有对称性结构。
D.
表面活性物质分子量在数百左右，介于低分子和高分子之间的一类物质。
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