1.选择题- (共6题)
3.
为了估计鱼塘中鱼的条数,养鱼者首先从鱼塘中打捞30条鱼做上标记,然后放归鱼塘,经过一段时间,等有标记的鱼完全混合于鱼群中,再打捞200条鱼,发现其中带标记的鱼有5条,则鱼塘中估计有{#blank#}1{#/blank#} 条鱼.
4.
为了估计鱼塘中鱼的条数,养鱼者首先从鱼塘中打捞30条鱼做上标记,然后放归鱼塘,经过一段时间,等有标记的鱼完全混合于鱼群中,再打捞200条鱼,发现其中带标记的鱼有5条,则鱼塘中估计有{#blank#}1{#/blank#} 条鱼.
5.
为了估计鱼塘中鱼的条数,养鱼者首先从鱼塘中打捞30条鱼做上标记,然后放归鱼塘,经过一段时间,等有标记的鱼完全混合于鱼群中,再打捞200条鱼,发现其中带标记的鱼有5条,则鱼塘中估计有{#blank#}1{#/blank#} 条鱼.
6.
如图所示,物体M在水平拉力F的作用下移动的过程中(物体没有掉下),物体M受到桌面的摩擦力 {#blank#}1{#/blank#} ,物体M对桌面的压强 {#blank#}2{#/blank#} (填“变大”、“变小”或“不变”)。
2.单项选择- (共7题)
7.
If he _______ the opportunity at that time, he would be the new department manager now.
A.seized | B.should seize | C.has seized | D.had seized |
8.
As we know, penicillin became the greatest drug of the 20th century, ______ millions of lives.
A.to save | B.saving | C.saved | D.Save |
9.
_____difficulty we will face, we should have confidence and try to solve it.
A.However | B.No matter how | C.Whatever | D.Whenever |
10.
Jane won’t join us for dinner tonight and _______.
A.neither won’t Tom | B.Tom will too | C.Tom won’t either | D.so will Tom |
11.
Many teenagers say that _____ they have a lot of friends, they really have no best friend.
A.when | B.while | C.if | D.because |
12.
There is an old saying _______ goes “Give a man a fish, and you feed him for a day. Teach a man to fish, and he can feed his belly the whole life”.
A.that | B.who | C.when | D.As |
试卷分析
-
【1】题量占比
选择题:(6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:1
5星难题:0
6星难题:4
7星难题:0
8星难题:2
9星难题:0