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【单选题】
1911年著名物理学家卢瑟福在用一正电的、质量比电子大得多的高速运动的α粒子轰击金箔时发现：①大多数α粒子能穿透金箔而不改变原来的运动方向；②少部分α粒子改变原来的方向，发生偏转；③极少数的α粒子被反弹了回来．由此不能推出关于原子内部结构的信息是（　　）
A.
原子核体积很小
B.
原子核带正电
C.
原子内部有“很大”的空间
D.
原子只有一个原子核
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参考答案：
举一反三
【简答题】单宁 (tannin)属酚类化合物的衍生物,多以颗粒状存在于细胞质、液泡或细胞壁中,具有抗水解、抗腐烂及动物损伤等生理功能,即具有( )的作用。
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【单选题】单片机的4个并行I/O端口作为通用IO端口使用时,在输出数据时,必须外接上拉电阻的是( )口。
A.
P0
B.
P1
C.
P2
D.
P3
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【单选题】According to the passage, which of the following is true?
A.
Marketeers should be responsible for the burdens of the past.
B.
Marketeers should separate themselves from their personal and cultural history.
C.
Marketeers should disagree on racial prejudices.
D.
Marketeers should take care of the wounded in the war.
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【单选题】Which of the following should NOT be considered in writing a poster?
A.
moody
B.
legible
C.
readable
D.
concise
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【简答题】Should any other clause in this contract be in conflict with the following supplementary conditions, the supplementary conditions should be taken as final and binding . (省略)
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【判断题】6-21.实现社会主义现代化，最根本的就是要通过改革开放，不断促进先进生产力的发展，使我国形成发达的生产力。（  ）
A.
正确
B.
错误
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【单选题】Which of the following is NOT a suggestion for dealing with violent programs?
A.
They should be banned only for children.
B.
They should be banned for both children and adults.
C.
They should be banned only for adults.
D.
They shouldn't be banned, for it is art.
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【单选题】当皮肤接触物质的时候,之所以产生不愉快的感觉,是由于接触的瞬间,( )所致。
A.
围围温度低
B.
皮肤温度迅速下降
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【单选题】Tannin（单宁），存于葡萄皮、籽与橡皮桶中的一种天然（）
A.
防腐剂
B.
水果类酸
C.
单宁酸
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【单选题】______, the following possible causes should be investigated.
A.
Should the engine stop without apparent reason
B.
The engine should stop without apparent reason
C.
The engine stops without apparent reason
D.
The engine is stopped without apparent reason
查看完整题目与答案
相关题目：
【简答题】单宁 (tannin)属酚类化合物的衍生物,多以颗粒状存在于细胞质、液泡或细胞壁中,具有抗水解、抗腐烂及动物损伤等生理功能,即具有( )的作用。
查看完整题目与答案
【单选题】单片机的4个并行I/O端口作为通用IO端口使用时,在输出数据时,必须外接上拉电阻的是( )口。
A.
P0
B.
P1
C.
P2
D.
P3
查看完整题目与答案
【单选题】According to the passage, which of the following is true?
A.
Marketeers should be responsible for the burdens of the past.
B.
Marketeers should separate themselves from their personal and cultural history.
C.
Marketeers should disagree on racial prejudices.
D.
Marketeers should take care of the wounded in the war.
查看完整题目与答案
【单选题】Which of the following should NOT be considered in writing a poster?
A.
moody
B.
legible
C.
readable
D.
concise
查看完整题目与答案
【简答题】Should any other clause in this contract be in conflict with the following supplementary conditions, the supplementary conditions should be taken as final and binding . (省略)
查看完整题目与答案
【判断题】6-21.实现社会主义现代化，最根本的就是要通过改革开放，不断促进先进生产力的发展，使我国形成发达的生产力。（  ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which of the following is NOT a suggestion for dealing with violent programs?
A.
They should be banned only for children.
B.
They should be banned for both children and adults.
C.
They should be banned only for adults.
D.
They shouldn't be banned, for it is art.
查看完整题目与答案
【单选题】当皮肤接触物质的时候,之所以产生不愉快的感觉,是由于接触的瞬间,( )所致。
A.
围围温度低
B.
皮肤温度迅速下降
查看完整题目与答案
【单选题】Tannin（单宁），存于葡萄皮、籽与橡皮桶中的一种天然（）
A.
防腐剂
B.
水果类酸
C.
单宁酸
查看完整题目与答案
【单选题】______, the following possible causes should be investigated.
A.
Should the engine stop without apparent reason
B.
The engine should stop without apparent reason
C.
The engine stops without apparent reason
D.
The engine is stopped without apparent reason
查看完整题目与答案
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