皮皮学，免费搜题
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【判断题】
()蜗杆传动由蜗轮、蜗杆、空间交错轴和机架组成,用于传递平行轴间的运动和动力。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】Part B Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each ques...
A.
Tom's test.
B.
Jane's research paper.
C.
Go swimming at the Student Center.
D.
Plans for the evening.
【单选题】Let's go to the ______________ to ______________. [ ]
A.
market, watch a movie
B.
library, read books
C.
part, panda
D.
farm, chicken
【单选题】听力原文：W: Excuse me, I came to look at the apartment you have advertised in the paper. M: Fine. Do you smoke or drink? W: No. Why? M: We don't allow that in our apartment. Are you a working girl? W: I h...
A.
102
B.
103
C.
201
D.
not sure
【简答题】测得某一蛋白质样品的氮含量为0.2克,此样品约含蛋白质多少克?____ A.2.00g B1.25g C.3.00g D.6.25g
【单选题】Last time we learnt part of the text. Today let's go on ______ it.
A.
to study
B.
study
C.
studying
【单选题】Directions : This part is to test your listening ability. It consists of 4 sections. Section A Directions : This section is to test your ability to give proper responses. There are 7 recorded question...
A.
Let's go now.
B.
Don't mention it.
C.
Sit down, please.
D.
Yes, I am.
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