1.选择题- (共7题)
2.
如图所示，一种射线管由平行金属板A，B和平行于金属板的细管C组成．放射源O在A极板左端，可以向各个方向发射不同速度、质量为m的电子．若极板长为L，间距为d，当A，B板加上电压U时，只有某一速度的电子能从细管C水平射出，细管C离两板等距．已知元电荷为e，则从放射源O发射出的电子的这一速度为（ ）
3.
如图所示，一种射线管由平行金属板A，B和平行于金属板的细管C组成．放射源O在A极板左端，可以向各个方向发射不同速度、质量为m的电子．若极板长为L，间距为d，当A，B板加上电压U时，只有某一速度的电子能从细管C水平射出，细管C离两板等距．已知元电荷为e，则从放射源O发射出的电子的这一速度为（ ）
2.单项选择- (共13题)
8.
----I’ve finished cleaning all the furniture in the room.
----I don’t think so. What about ____ on the balcony?
----I don’t think so. What about ____ on the balcony?
| A．the one | B．it | C．that | D．those |
9.
______ important thing in life is to have a great aim, and ______ determination to attain it.
| A．An ; 不填 | B．A ; the | C．The ; the | D．The ; 不填 |
10.
Surely it doesn’t matter where the student associations get their money from; what _______ is what they do with it.
| A．counts | B．applies | C．stress | D．functions |
12.
Liuxiang earned the respect from the whole world as he hopped down the track to the finishing line, ____the last hurdle.
| A．kissed | B．to kiss | C．kissing | D．having kissed |
13.
The machine has been made easier for it____.
| A．to operate | B．operated |
| C．being operated | D．to be operated |
14.
I have no one ____ me, for I can deal with it all by myself.
| A．to help | B．to have helped | C．help | D．helped |
15.
The situation forced my mother and I exchanged our roles as child and caretaker, making me grow up much faster than the _____ child.
| A．average | B．ordinary | C．common | D．usual |
16.
I’m sorry not to have replied to your letter earlier, ______, I must say , I apologize.
| A．which | B．for which | C．to which | D．whom |
17.
----Many online games are full of violence, which do harm to the development of the children.
----And that’s _______ my concern lies.
----And that’s _______ my concern lies.
| A．what | B．which | C．where | D．that |
18.
Jason is a man of great determination and he will keep moving forward____ the result．
| A．whatever | B．however |
| C．wherever | D．whichever |
19.
We are in a difficult position in____ we have nobody properly qualified for this work.
| A．that | B．when | C．what | D．where |
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(13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：7
5星难题：0
6星难题：3
7星难题：0
8星难题：0
9星难题：0