题目内容

It is impossible to let a group of employees full ofand complaint finish a job in an efficient way.

A. grieve
B. grievance
C. gravity
D. gratitude

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One of the impacts of COVID-19 is that currently many countries face the severe situation that economy continues toor worsen.

A. still
B. frozen
C. stigma
D. stagnate

Those retired people who live onare suffering a lot from continuous inflation; one consequence is that they can no longer afford three nutritious meals a day.

A. pension
B. penny
C. penalty
D. grant

放大电路的输入电阻越大,说明其向前级(信号源)索取的电流_________。

A. 越大
B. 越小

放大电路的输出电阻越小,其带负载能力_______。

A. 越强
B. 越弱

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