Measure （） by means of lead wire.

[单选题]Adjust （） by means of lead wire.A . the clearance of the main bearingB . the diameter of main bearingC . the gap of main beatingD . the tolerance of main bearing

[单选题]A． meansB． methodC． medium D measure

[名词解释] 线框（Wire frame）

[单选题]The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the（）in hertz，and the（）on the channelA．signal frequency B．bandwidth C．carrier frequency D．noise frequency A．signal B．caeeier C．noise

[名词解释] 测量（measure）

[主观题]H．omework_____ontimewillleadtobettergrades.(A)done(B)bedone(C)havingdone(D)tohavebeendone

[主观题]Homework_____ontimewillleadtobettergrades.(A)done(B)bedone(C)havingdone(D)tohavebeendone

[问答题] Lead time的定义？

[名词解释] 引入线 lead line

[单选题]Stressful environments lead to unhealthy behaviors such as poor eating habits, which ________ increase the risk of heart disease.[A] in turn[B] in return[C] by chance[D] by turns