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10.1 两个物体间的作用力与反作用力总是大小相等,方向相反

时间:2017-10-05 10:38来源:未知 作者:admin 点击:
1. 10.1 两个物体间的作用力与反作用力总是大小相等,方向相反,沿着同一直线,且同时分别作用在这两个物体上。这就是作用与反作用定律,它只适合于静平衡的物体。 A. 对 B. 错 全是标准16春奥鹏作业 正确答案:B 2. 15.2 对于理想约束的质点系,其平衡的充分

《大学英语二》作业一北京师范11春
大学英语, 北京师范, believe
单选:第1题(3分)
第一部分:交际用语(共5小题;每小题3分,满分15分)
-I believe we've met somewhere before.
-____________. 
it isn't the same
it can't be right
I don't think so 
I'd rather not 
    
第一部分:交际用语(共5小题;每小题3分,满分15分)
-Oh dear! I've just broken a window.
-____________. 
Great 
Never mind 
That's fine 
Not at all 

第一部分:交际用语(共5小题;每小题3分,满分15分)
-I had a really good weekend at my uncle's.
-____________. 
Oh, that's very nice of you
Certainly 
It's a pleasure
Oh, I'm glad to hear that 
第一部分:交际用语(共5小题;每小题3分,满分15分)
-Thank you ever so much for the book you gave me.
-____________. 
No thanks 
I'm glad you like it 
Yes, it is good
No, it's not so good 
第一部分:交际用语(共5小题;每小题3分,满分15分)
-What day is today?
-____________. 
Today is March 25th
Today is Saturday
Today is fine
Today is cold 
第二部分:阅读理解(共10小题;每小题3分,满分30分)
Passage 1
The story happened _______.
in England 
on a ship from Norway to England 
in Norway 
on a ship from England to Norway
第二部分:阅读理解(共10小题;每小题3分,满分30分)
Passage 1
Why didn't the traveler go to the dinning room first?
Because he had no money
Because he didn't feel very well
Because he didn't want to eat anything
Because he didn't hear the sound of the bell

The traveler went to the dinning room to eat something because _______.
his friend had given him some money
the waiter had asked him to change his mind
he learned that there was no bill on the ship
he was too hungry
"_____" is the main idea of the text.
The problem of backpacks is worth studying
The problem made by heavy backpacks
What is the best backpack for a student
How to make students' backpacks light
According to Enderlin Reyes and Shirley Park, we know ______.
students have to do too much homework
backpacks have to carry heavy backpacks 
backpacks without wheels are bad for students
too much homework leaves students no free time
The expression "switched to" in the text perhaps means ______.
started to use 
turned to 
caught up 
used for
According to the passage, it's better for a student of 40 kilograms to carry a backpack of _____ at most by the words of experts.
10 kg 
8 kg 
6 kg 
7 kg
If students follow the doctor's suggestions they ______.
may lighten their backpacks
can learn how to help themselves
may feel their backpacks are lighter
will know how to wear backpacks
 

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