题目内容

A．productionB．productC．productivityD．productive

A. production
B. product
C. productivity
D. productive

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A．promoteB．increaseC．improveD．primary

A. promote
B. increase
C. improve
D. primary

A．regardB．relativeC．regularD．irregular

A. regard
B. relative
C. regular
D. irregular

A．75 quakes.B．64 quakes.C．119 quakes.D．70 quakes.

A. 75 quakes.
B. 64 quakes.
C. 119 quakes.
D. 70 quakes.

A．employersB．employeesC．governmentD．others

A. employers
B. employees
C. government
D. others