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【单选题】
升高温度会使化学平衡向吸热反应方向移动，此时正逆反应的反应速度分别（）。A.
均增大
B.
均减小
C.
增大和减小
D.
减小和增大
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反馈参考答案：
举一反三
【单选题】对于采用真空控制的中央门锁装置，当真空管路出现漏气时，可能导致（）。
A.
所有门锁执行机构工作不正常
B.
左前门锁执行机构正常不工作
C.
右前门锁执行机构正常不工作
D.
右后门锁执行机构正常不工作
【单选题】If a good is subject to the free-rider problem and an inefficiently low level of production when left to the private market, the good must be a(n):
A.
private good.
B.
public good.
C.
common resource.
D.
artificially scarce good.
【简答题】Taking pictures is fun, and taking good ones is not difficult if you follow a few rules. Before you snap ( 快拍 )a picture, thinking about it. Be sure that you are close enough to your subject. A...
【简答题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered. Taking pictures is fun, and taking good ones is not difficult if you follow a few rule...
【简答题】To classify is to sort things into categories according to their characteristics. Essential to a good classification is parallelism in which the parts must be parallel, and they should add up to the w...
【多选题】轻度精神发育迟滞的诊断标准包括
A.
智商在35~40至50~55之间
B.
学习成绩差，时常不及格或留级
C.
只能完成较简单的手工劳动
D.
生活能自理
E.
无明显言语障碍
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