【单选题】JK触发电路中,当J=0、K=1、Qn=0时,触发器的状态()
【单选题】JK 触发电路中,当 J=0 、 K=1 、 Qn=1 时,触发器的状态( )
【单选题】CA6140型车床控制电路板的布线采用板前明线布线工艺要求为( )。
A.
布线应横平竖直,分布均匀。变换走向时应垂直。
C.
导线与接线端子或接线桩连接时,不得压绝缘层、不反圈及不露铜过长。
D.
一个电器元件接线端子上的连接导线不得多于两根。
【简答题】复习方式的多样化,有助于提高学生的兴趣,提高复习效益,复习方式有整体复习、部分复习和综合复习,实验研究表明整体识记效果最佳。
【单选题】听力原文:W: Professor Smith caught some students cheating on the final exam and failed them right later. M: Serves them right. I don't sympathize with anyone trying to pass exams in that way. Q: What's th...
A.
He feels sorry for those students.
B.
He considers the punishment excessive.
C.
He thinks it good to punish those students.
D.
He disapproves of what the professor did.
【单选题】Professor Smith has written some short stories , but he is _____known for his plays .
【单选题】Professor Smith has written some novels, but he is _____ known for his plays.
【简答题】直肠在矢状面上有两个弯曲,凸向前的为 ____,凸向后的为 ____。