1.选择题- (共4题)
1.如图所示,一个可以看作质点的物体以一定的初速度沿水平面由A点滑到B点,克服摩擦力做功大小为W
;若该物体从C点以一定的初速度沿两个斜面滑到D点,两斜面用光滑小圆弧连接,克服摩擦力做功大小为W
;已知该物体与各接触面的动摩擦因数均相同,则



2.单项选择- (共7题)
5.
I arrive at nine o’clock, teach until twelve thirty and then have a meal; that is my morning .
A.policy | B.behavior | C.tendency | D.routine |
6.
Bill was doing a lot of physical exercise to build up his _______.
A.ability | B.force | C.motivation | D.strength |
7.
Peter is my close friend, who can be ________ what he promises.
A.relied on to do | B.relied to do |
C.relied on doing | D.relying to doing |
8.
Required to accomplish it within the given time, we are working under _______ pressure at the moment.
A.steady | B.secure | C.extreme | D.precise |
10.
Though he was born and brought up in Australia, he can speak ______ Chinese.
A.fluent | B.smooth | C.flowing | D.floating |
试卷分析
-
【1】题量占比
选择题:(4道)
单项选择:(7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:7
7星难题:0
8星难题:0
9星难题:0