题目内容

The couple with the new-burn baby was looking for someone to help manage the ________

A. household
B. householder
C. shareholder
D. shareholding

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Chinese parents are known to make huge ______ to ensure a good education for their children.

A. surroundings
B. sacrifices
C. sanctions
D. sales

Your analysis put my problems into _______.

A. presence
B. parenting
C. perspective
D. perception

三端集成稳压器7812的输出电压是( )

A. -12V
B. 5V
C. +12V
D. -15V

小功率直流稳压电源一般由4部分电路构成,以下哪一部分电路功能可以实现把交流变成单向的直流()

A. 变压器
B. 整流电路
C. 滤波电路
D. 稳压电路

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