1.选择题- (共5题)
1.下表是细胞生长过程中不同阶段的一些数据:
组别 | 长度 (μm) | 直径 (μm) | 壁厚度 (μm) | 细胞体积 (μm3) | 液泡体积 (μm3) |
阶段1 | 26 | 24 | 2 | 12600 | 600 |
阶段2 | 36 | 330 | 2 | 3360000 | 2730000 |
细胞从阶段1过度到阶段2发生了什么变化?( )
2.如图甲是法拉第圆盘发电机实物图,主要部分是一个在磁场中转动的导体圆盘.若磁感线方向如乙图所示,导体圆盘绕中心轴按逆时针方向转动,当A、O分别与电路中的C、D接通时,设流过灯的电流为I1;当A、B分别与电路中的C、D接通时,设流过灯的电流为I2。则( )
3.如图甲是法拉第圆盘发电机实物图,主要部分是一个在磁场中转动的导体圆盘.若磁感线方向如乙图所示,导体圆盘绕中心轴按逆时针方向转动,当A、O分别与电路中的C、D接通时,设流过灯的电流为I1;当A、B分别与电路中的C、D接通时,设流过灯的电流为I2。则( )
5.在一定的条件下,反应物溶液中溶质的质量分数越大,化学反应的速度越快。现有100克溶质质量分数为30%的硫酸溶液,与足量的锌粒反应,为了减缓化学反应,而又不影响生成氢气的总质量,可向该溶液中加入适量的( )
2.单项选择- (共9题)
6.
---Why do you suggest Hangzhou?
---I believe _______ beauty of _______ nature there will make an excellent impression upon the tourists.
---I believe _______ beauty of _______ nature there will make an excellent impression upon the tourists.
A.a, the | B.the, the | C.the, a | D.the, / |
7.
_______ an important decision more on emotion(情感)than on reason, you will regret it sooner or later.
A.Basing | B.Based | C.To base | D.Base |
8.
It’s such a surprise! Never did she dream of _______ a chance for her to be sent abroad for further study.
A.there to be | B.there having | C.there being | D.there is |
9.
The teacher requested that we _______ detailed notes in class because they are more ______ than our memory.
A.would take; active | B.could take; honest | C.take; reliable | D.should take; stubborn |
10.
Everything was placed _______ where he wanted it for the party, with which he was very satisfied.
A.gradually | B.entirely | C.officially | D.exactly |
11.
--- You’ve left the water running.
--- Oh, I have. _______ and turn it off.
--- Oh, I have. _______ and turn it off.
A.I go | B.I’ve gone | C.I’ll go | D.I’m going |
12.
When deeply lost in thought, _______ he often was, he would forget all about eating or sleeping.
A.that | B.where | C.which | D.when |
13.
His writing is so neat that it’s easy for the teacher to make out ______ he is trying to express.
A.what is it that | B.that it is what | C.that is it what | D.what it is that |
试卷分析
-
【1】题量占比
选择题:(5道)
单项选择:(9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:9
7星难题:0
8星难题:0
9星难题:0