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【简答题】
四个电阻均为 1 Ω,求 a 、 b 之间的电阻值。 (1)S 1 、 S 5 闭合; (2) S 2 、 S 3 和 S 5 闭合; (3) S 1 、 S 3 和 S 4 闭合。 (画出每个小问的等效电路图)
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【单选题】虚拟语气 ___the clouds, you would find the airplane in the sky easily
A.
Had it not been for
B.
If it were not
C.
If it had not been for
D.
Were it not for
【单选题】If you _____ stayed at home, this would never have happene
A.
have
B.
had
C.
will have
D.
would have
【单选题】Who would you rather__________ with you，George or me?
A.
going
B.
to go
C.
hane gone
D.
went
【简答题】改革开放以来，社会上曾风行“零岁方案”“神童方案”。一些“望子成龙”的家长强行给自己的子女进行盲目的早期定向培养。有的父母在孩子未出生时就买好了钢琴，企图把宝宝培养成钢琴家，有的家长在孩子一两岁时就强行要求他背古诗、练习书画等。一些幼儿园迫于家长的压力或经济利益的驱动，办起了各种各样的兴趣班、特长班。总的来说，目前的学校教育表现为重知识灌输、轻能力培养；重智力培养、轻人格因素培养等错误倾向。请分析...
【单选题】华中世纪星系统数控车床G54~G59指令是用来设定工件坐标系的，它们与G92指令的差别在于( )。
A.
G92设定的坐标系与起刀点有关，而G54~G59则与起刀点无关，更方便程序的编制与计算
B.
G92设定的坐标系与起刀点无关，而G54~G59也与起刀点无关，更方便程序的编制与计算
C.
G92设定的坐标系与起刀点有关，而G54~G59则也与起刀点有关，只是为了更方便程序的编制与计算
D.
使用G 92、G54~G59都是设定工件坐标系，使用选择上没有什么区别
【单选题】Would you like me to help you make a plan for the summer vacation?().
A.
No, I already have my plans.
B.
I'd love to, but I'm busy today.
C.
I'm ill, so I shouldn't go out.
【单选题】If you had taken my advice, you ______ in the examination.
A.
would have failed
B.
wouldn't have failed
C.
would fail
D.
wouldn't fail
【单选题】—Is there any particular soup you would like to have? — you select is all right with me.
A.
Whatever
B.
Anyone
C.
No matter what
D.
Whichever
【单选题】一-Excuse me , would you lend me your calculator?
A.
Certainly、 Here you are
B.
Yes , 1 have a hand
C.
It's nothing
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