相关题目
13.DO NOT LET THE HEATER [ ]TOO HOT( )
12.When an illustration is required to be reproduced horizontally on a page, the top of the illustration shall always be toward the left edge of the sheet ( )
11.这种材料接触热表面时会释放出危险的气体。 ( )
10.在这种构型中,液压旁通此活门。( )
9.An alphabetical index by subject is included in the introduction, as an assistance in locating the desired circuit( )
8.I remember the whole thing as if it happened yesterday ( )
7.Measure the time necessary for the pressure to decrease( )
6.The backup converter defaults to the right backup generator If the right backup generator is not available or faulty, the converter uses the left backup generator( )
5.AND gate is a logic device in which the logic condition [zero or one]of its single output is one only when the conditions of all of its inputs are logic one( )
4.绿灯亮时,系统准备工作。 ( )
