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【单选题】
由实验测定,反应 H 2 (g) + Cl 2 (g) = 2HCl(g) 的速率方程为 v = kc(H 2 )c 1/2 (Cl 2 ) ,在其他条件不变的情况下,将每一反应物浓度加倍,此时反应速率为A.
2v
B.
4v
C.
2.8v
D.
2.5v
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反馈参考答案：
举一反三
【单选题】G91 G00 X30.0 Y-20.0 表示( )。
A.
刀具按进给速度移至机床坐标系X=30 mm，Y=-20 mm
B.
刀具快速移至机床坐标系X=30 mm, Y=-20 mm
C.
刀具快速向X正方向移动30 mm，Y负方向移动20 mm
D.
编程错误
【单选题】Read the following two paraphrases and decide which paraphrase is better.【图片】【图片】来源https://www.academic-englishuk.com/paraphrasing
A.
Student paraphrase A
B.
Student paraphrase B
C.
D.
【单选题】“W e are no longer slaves to style."(Paragraph3) How do you paraphrase the sentence?
A.
w e are not slaves to style anymore.
B.
W e no longer follow the fashion blindly.
【多选题】According to the lecture, which are the TWO common strategies to paraphrase?
A.
Changing words and phrases
B.
Changing the key point
C.
Changing sentence structure
D.
Changing information
【单选题】G91G00X30．0Y-20．0表示（）。
A.
刀具按进给速度移至机床坐标系X=30mm，Y=-20mm点
B.
刀具快速移至机床坐标系X=30mm，Y=-20mm点
C.
刀具快速向X正方移动30mm，Y负方向移动20mm
D.
编程错误
【单选题】听力原文：M: We must have two bathrooms and two sitting rooms. W: And the kitchen must be large. Q: What are they talking about? (7)
A.
Selling a house.
B.
Inviting some friends.
C.
Buying a house.
D.
Having some food.
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