1.选择题- (共4题)
1.
一批产品抽50件测试，其净重介于13克与19克之间，将测试结果按如下方式分成六组：第一组，净重大于等于13克且小于14克；第二组，净重大于等于14克且小于15克； ... 第六组，净重大于等于18克且小于19克．如图是按上述分组方法得到的频率分布直方图．设净重小于17克的产品数占抽取数的百分比为x，净重大于等于15克且小于17克的产品数为y，则从频率分布直方图中可分析出x和y分别为( )
3.一个弹簧振子，在光滑水平面上作简谐运动，如图所示，当它从左向右恰好经过平衡位置时，与一个向左运动的钢球发生正碰，已知碰后钢球沿原路返回，并且振子和钢球不再发生第二次碰撞。则下面的情况中不可能出现的是 （ ）
4.一个弹簧振子，在光滑水平面上作简谐运动，如图所示，当它从左向右恰好经过平衡位置时，与一个向左运动的钢球发生正碰，已知碰后钢球沿原路返回，并且振子和钢球不再发生第二次碰撞。则下面的情况中不可能出现的是 （ ）
2.单项选择- (共8题)
5.
—I don’t think we’ll be able to pass the driving test．
—If we keep practicing , we, should make ___.
—If we keep practicing , we, should make ___.
| A．this | B．that | C．one | D．it |
6.
In 1519 ____ traveler who went to American from Europe discovered ____tomato．
| A．the; the | B．the ; a | C．a:．a | D．a; the |
7.
Everyone’s talking about _____ a．movie, but nobody can tell exactly what its title is．
| A．there being | B．there be |
| C．there will be | D．there is |
8.
There was a bloody incident and more than 20 journalists were reported ____ in southern Philippines．
| A．having been killed | B．to have been killed |
| C．being killed | D．killed |
9.
After working abroad for several years．Gill wants to settle down to a ____job in Britain．
| A．normal | B．constant | C．permanent | D．primary |
10.
One of the first things Joan did ____ getting home was to water her flowers．
| A．by | B．on | C．at | D．for |
11.
I was so tired that __ I closed my eyes, 1 fell asleep．
| A．the moment | B．the moment, when |
| C．for the moment | D．at the moment when |
试卷分析
-
【1】题量占比
选择题:(4道)
单项选择:(8道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：8
7星难题：0
8星难题：0
9星难题：0