题目内容

构成各种半导体器件的基础是PN结,它具有______ 特性。

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稳压二极管根据击穿机理可以分为______ 击穿。

三极管正常工作(起放大作用)必须具备的两个外部条件是______ 。

An explosion is a sudden increase in amount __________.

A. rapid burning causes it
B. to be caused by rapid burning
C. causing its burning to be rapi
D. caused by rapid burning

As __________ as you work hard and perform well, opportunities will be made available to you as the company succeeds and grows.

A. best
B. most
C. much
D. long

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