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【单选题】
重氮化反应的速度受多种因素的影响,测定中的主要条件有以下几种,其中不正确的条件是
A.
滴定管尖端紧挨液面滴定
B.
加入适当的溴化钾加快反应速度
C.
加过量的盐酸加速反应
D.
室温(10~30℃)条件下滴定
E.
接近滴定终点时搅拌1~5分钟
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举一反三
【单选题】Select the correctly punctuated sentence.
A.
After stealing Tims car, the thief lost his way and ended up the chief constable's garage.
B.
After stealing Tim's car the thief lost his way and ended up the chief constable's garage.
C.
After stealing Tim's car, the thief lost his way and ended up the chief constable's garage.
D.
After stealing Tim's car, the thief lost his' way and ended up the chief constable's garage.
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【单选题】Select the correctly punctuated sentence.
A.
The children's books were all left in the following places: Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
B.
The children's books were all left in the following places; Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
C.
The childrens books were all left in the following places: Mrs Smiths room, Mr Powells office and the caretakers cupboard.
D.
The children's books were all left in the following places, Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
查看完整题目与答案
【单选题】利用渐变工具进行填充的时候,渐变方式一共有( )种。
A.
3
B.
4
C.
5
D.
6
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
a) Spain is a beautiful country; the beache's are warm, sandy and spotlessly clean.
B.
b) Spain is a beautiful country: the beaches are warm, sandy and spotlessly clean.
C.
c) Spain is a beautiful country, the beaches are warm, sandy and spotlessly clean.
D.
d) Spain is a beautiful country; the beaches are warm, sandy and spotlessly clean.
查看完整题目与答案
【单选题】Select the correctly punctuatedsentence.
A.
a)She always enjoyed sweets, chocolate, marshmallows and toffee apples.
B.
b)She always enjoyed: sweets, chocolate, marshmallows and toffee apples.
C.
c)She always enjoyed sweets chocolate marshmallows and toffee apples.
D.
d)She always enjoyed sweet's, chocolate, marshmallow's and toffee apple's.
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
Spain is a beautiful country; the beache's are warm, sandy and spotlessly clean.
B.
Spain is a beautiful country: the beaches are warm, sandy and spotlessly clean.
C.
Spain is a beautiful country, the beaches are warm, sandy and spotlessly clean.
D.
Spain is a beautiful country; the beaches are warm, sandy and spotlessly clean.
查看完整题目与答案
【单选题】利用渐变工具进行填充的时候,渐变方式一共有( )种。
A.
5
B.
4
C.
6
D.
7
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
a)After stealing Tims car, the thief lost his way and ended up the chief constable's garage.
B.
b)After stealing Tim's car the thief lost his way and ended up the chief constable's garage.
C.
c)After stealing Tim's car, the thief lost his way and ended up the chief constable's garage.
D.
d)After stealing Tim's car, the thief lost his' way and ended up the chief constable's garage.
查看完整题目与答案
【单选题】反应A(g)+3B(g)↔2C(g); 是一个放热的反应,达到平衡后,将气体混合物的温度降低,下列叙述中正确的是
A.
正反应速率加大，逆反应速率减小，平衡向正反应方向移动
B.
正反应速率变小，逆反应速率增大，平衡向逆反应方向移动
C.
正反应速率和逆反应速率减小，平衡向正反应方向移动
D.
正反应速率和逆反应速率减小，平衡向逆反应方向移动
E.
正反应速率和逆反应速率不改变，平衡向正反应方向移动
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【单选题】反应2A(g)↔2B(g)+E(g)(正反应为吸热反应)达到平衡时,要使正反应速率降低,A的浓度增大,应采取的措施是( )。
A.
加压
B.
减压
C.
减小E的浓度
D.
降温
查看完整题目与答案
相关题目：
【单选题】Select the correctly punctuated sentence.
A.
After stealing Tims car, the thief lost his way and ended up the chief constable's garage.
B.
After stealing Tim's car the thief lost his way and ended up the chief constable's garage.
C.
After stealing Tim's car, the thief lost his way and ended up the chief constable's garage.
D.
After stealing Tim's car, the thief lost his' way and ended up the chief constable's garage.
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
The children's books were all left in the following places: Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
B.
The children's books were all left in the following places; Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
C.
The childrens books were all left in the following places: Mrs Smiths room, Mr Powells office and the caretakers cupboard.
D.
The children's books were all left in the following places, Mrs Smith's room, Mr Powell's office and the caretaker's cupboard.
查看完整题目与答案
【单选题】利用渐变工具进行填充的时候,渐变方式一共有( )种。
A.
3
B.
4
C.
5
D.
6
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
a) Spain is a beautiful country; the beache's are warm, sandy and spotlessly clean.
B.
b) Spain is a beautiful country: the beaches are warm, sandy and spotlessly clean.
C.
c) Spain is a beautiful country, the beaches are warm, sandy and spotlessly clean.
D.
d) Spain is a beautiful country; the beaches are warm, sandy and spotlessly clean.
查看完整题目与答案
【单选题】Select the correctly punctuatedsentence.
A.
a)She always enjoyed sweets, chocolate, marshmallows and toffee apples.
B.
b)She always enjoyed: sweets, chocolate, marshmallows and toffee apples.
C.
c)She always enjoyed sweets chocolate marshmallows and toffee apples.
D.
d)She always enjoyed sweet's, chocolate, marshmallow's and toffee apple's.
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
Spain is a beautiful country; the beache's are warm, sandy and spotlessly clean.
B.
Spain is a beautiful country: the beaches are warm, sandy and spotlessly clean.
C.
Spain is a beautiful country, the beaches are warm, sandy and spotlessly clean.
D.
Spain is a beautiful country; the beaches are warm, sandy and spotlessly clean.
查看完整题目与答案
【单选题】利用渐变工具进行填充的时候,渐变方式一共有( )种。
A.
5
B.
4
C.
6
D.
7
查看完整题目与答案
【单选题】Select the correctly punctuated sentence.
A.
a)After stealing Tims car, the thief lost his way and ended up the chief constable's garage.
B.
b)After stealing Tim's car the thief lost his way and ended up the chief constable's garage.
C.
c)After stealing Tim's car, the thief lost his way and ended up the chief constable's garage.
D.
d)After stealing Tim's car, the thief lost his' way and ended up the chief constable's garage.
查看完整题目与答案
【单选题】反应A(g)+3B(g)↔2C(g); 是一个放热的反应,达到平衡后,将气体混合物的温度降低,下列叙述中正确的是
A.
正反应速率加大，逆反应速率减小，平衡向正反应方向移动
B.
正反应速率变小，逆反应速率增大，平衡向逆反应方向移动
C.
正反应速率和逆反应速率减小，平衡向正反应方向移动
D.
正反应速率和逆反应速率减小，平衡向逆反应方向移动
E.
正反应速率和逆反应速率不改变，平衡向正反应方向移动
查看完整题目与答案
【单选题】反应2A(g)↔2B(g)+E(g)(正反应为吸热反应)达到平衡时,要使正反应速率降低,A的浓度增大,应采取的措施是( )。
A.
加压
B.
减压
C.
减小E的浓度
D.
降温
查看完整题目与答案