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【多选题】
在本单元圣何塞州立大学《电路分析导论》课程这一案例中,教师以两组测试题为核心组织面对面教学,在两组测试题中,先进行小组测验,再进行个人测验,且小组测验采用了三人小组而非常见的5-6个人一个小组,这样设计的好处是什么?
A.
三人小组的设计有利于教师控制活动节奏,并且尽可能保证人人参与
B.
对于新知识来说,首先进行小组测验有利于学生之间进行互帮互助,降低个人测验带来的压力
C.
首先进行小组测验有利于学生们之间的互相检查,尽可能减少学生课前不学习的情况
D.
首先进行小组测验有利于产生良好的课堂氛围,引导学生形成积极的心态
E.
先小组再个人的方式同时兼顾了小组学习和个人学习,丰富了课堂活动的形态
F.
小组测验有利于让学生看到其他人是如何想的、如何做的,从而与自己的知识和方法进行对比,达到同伴学习的效果
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【单选题】以下不会发生中毒反应的维生素是
A.
维生素A
B.
维生素C
C.
维生素D
D.
维生素E
【单选题】给出下列条件(其中l和a为直线,α为平面): ①l垂直α内一凸五边形的两条边; ②l垂直α内三条都不平行的直线; ③l垂直α内无数条直线; ④l垂直α内正六边形的三条边; ⑤a垂直α,l垂直a. 其中是“l垂直α”的充分条件的所有序号是(  )
A.
①②④
B.
②③
C.
①④
D.
②④
【单选题】Why did some TT therapists agree to be the subject of Emily's experiment?
A.
Each participator would be offered more than $1 million as reward.
B.
They thought the girl was too young to make any meaningful discovery.
C.
The experiment was more straightforwardly participated than other experiments.
D.
They took the experiment as an interesting game rather than a scientific practice.
【单选题】曲线积分 ( ),其中L为沿直线从点 到点 ,再沿直线到 的折线.
A.
12
B.
14
C.
16
D.
18
【简答题】在空间中,取直线l为轴,直线l′与l相交于点O,其夹角为α(α为锐角),l′围绕l旋转得到以O为顶点,l′为母线的圆锥面,任取平面π,若它与轴l交角为β(π与l平行时,记β=0),则:当 π 2 >β>α 时,平面π与圆锥面的交线为______.
【单选题】The purpose of Emily Rosa% experiment was ______.
A.
to see why TT could work the way it did
B.
to find out how TT cured patients' illness
C.
to test whether she could sense the human energy field
D.
to test whether a human energy field really existed
【单选题】(2)请按简化公式计算这两年该方案的所得税前净现金流量NCF1
A.
100.64
B.
101.64
C.
102.64
D.
103.64
【单选题】Why did some TT practitioners agree to be the subjects of Emily's experiment?
A.
It involved nothing more than mere guessing.
B.
They thought it was going to be a lot of fun.
C.
It was more straightforward than other experiments.
D.
They sensed no harm in a little girl's experiment.
【简答题】Why did Miss Emily kill Homer Barron?
【单选题】,其中L为直线 ( )
A.
1;
B.
2 ;
C.
;
D.
3.
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