皮皮学，免费搜题
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【单选题】
把两个及其两个年级以上的儿童编在一个班级，直接教学与布置、完成作业轮流交替进行，在一节课内由一位教师对不同年级学生进行教学的组织形式是（ ）。A.
分层教学
B.
合作学习 ？__？
C.
小班教学
D.
复式教学
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【单选题】There is no ____ in the bus and we have to wait for another.
A.
rooms
B.
a room
C.
room
【简答题】While we_1___(wait) for the bus, a girl_2___( run) up to us.
【简答题】稳压电源电路如图所示,(1) 该电路输出电压U0值为多少伏?(2) 若测得UC=12V,问U2值为多少?(3)若已知U2=20V,并测得UC=18V,分析电路发生了什么的故障?
【单选题】虽然解决了桥梁构造设计的难题，实际建造中仍然面临许多困难。
A.
Although we have overcome the problem of the design for the structure of the bridge, we still confront many difficulties concerning its actual construction.
B.
Although the problem of the design for the structure of the bridge has been overcome, we are still confronted with many difficulties concerning its actual construction.
C.
/
D.
/
【简答题】Rewrite the following passage, giving the sentences some variety in length and structure I got up a little later than usual on Sunday morning. I washed and had a quick breakfast. Then I started going ...
【简答题】电路如图所示,已知 R 1 =10kΩ ,R 2 =20k Ω ,若 u i =1V,则u O =A. －2 V B. C. D. B. －1.5 V C. +0.5 V D. -0.5 V
【简答题】Task 4Rewrite the following passage , giving thesentences some variety in length and structure: 1. I got up alittle later than usual on Sunday morning. I washed and had a quick breakfast. Then I start...
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