问题

In aerospace devices the weight of thenecessary power producing equipment is _____.

A:vital
B:possible
C:capable
D:reliable

正确答案是：

同类题型

you health and happiness.

I didn’t tell my parents that I would leave home. –You ________ when you left home since you are living with them.

Hi, Susan! You look __________ today. — Well, I got _________ A in theEnglish test.

InthefleamarketlastweekIsoldmycomputer______1000yuan[ ]

My daughter________ hard for more than one year to realize her dreamjoining the Party and now her dream comes true