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【单选题】
水文四等水准测量作业时，为使其视距不等差符合要求，测量过程中应注意不使前后视距（）。A.
不等差减小
B.
不等差增大
C.
不等差累积系统减小
D.
不等差累积系统增大
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举一反三
【单选题】What benefit can the patent system offer when the patent expires?
A.
An increase in consumer well-being.
B.
A reduced price for consumers.
C.
Higher productivity.
D.
The promotion of a desirable invention.
【简答题】V带传动中,限制带的根数 Z≤Zmax,是为了保证
【简答题】V带传动中,限制带的根数 Z≤Zmax,是为了保证每根V带 。
【单选题】What does the writer imply in the fourth paragraph?
A.
Organizations can increase communication and disseminate adequate information about the change to employees．
B.
Organizations can help employees through training and educating them on how to cope with stress．
C.
Organizations can create a supportive environment at the workplace and it is vital that both superiors and colleagues play a part．
D.
That would be beneficial for the company if the employees are in a good state of psychological and emotional well-being，instead of being overly stressed or burned out．
【单选题】What can NOT be caused by a decrease or an increase in ozone?
A.
Skin cancer.
B.
Harm crops.
C.
Harm animals and fish.
D.
Increase in temperature.
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