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【简答题】
在微生物细胞质内存在着沉降系数为______S的核糖体，它是由______S和______S两个基组成，而其线粒体和叶绿体内则存在着______S核糖体，它是由______S和______S两个基组成。
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皮皮学刷刷变学霸
举一反三
【单选题】The supply of groundwater is getting low because of ______.
A.
conservation
B.
toxic waste
C.
pollution
D.
population increase
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【单选题】患儿男，3岁半。发热4天，伴咳嗽，流涕，眼结膜充血，流泪，半天前发现患儿耳后，颈部，发缘有稀疏的不规则红色丘斑疹，疹问皮肤正常，体温40℃，心肺正常。 该患儿最有可能发生
A.
风疹
B.
麻疹
C.
猩红热
D.
幼儿急疹
E.
水痘
查看完整题目与答案
【单选题】某工程划分4个施工过程,在5个施工段上组织固定节拍流水施工,流水节拍为3天,要求第三道工序与第四道工序间技术间歇2天,该工程的流水施工工期为( )天。
A.
39
B.
29
C.
26
D.
14
查看完整题目与答案
【单选题】咯粉红色泡沫痰提示
A.
右心衰竭
B.
左心衰竭
C.
全心衰竭
D.
心肌炎
E.
心包炎
查看完整题目与答案
【单选题】Because of the Russian gas limit to Europe, attempts _______ to use botanical fuel as a source of power.
A.
have made
B.
having made
C.
are being made
D.
will be making
查看完整题目与答案
【单选题】Which of the following statements can best indicate the author's attitude?
A.
The lack of political resolve renders an EAMU impossible.
B.
An EAMU is practical in the long run despite their regional differences.
C.
Monetary union proves to be successful in Singapore and Brunei.
D.
Monetary union in East Asia can come true in the short run because of economic cooperation.
查看完整题目与答案
【单选题】唐玄宗当政全国共有多少个驿站?
A.
1639
B.
1693
C.
1600
D.
1700
查看完整题目与答案
【单选题】Halliday stood out from the other pupils because of his ______.
A.
beautiful handwriting
B.
poor results in poetry tests
C.
good behaviour
D.
football skills
查看完整题目与答案
【判断题】一般情况下，自重应力随土层深度的增大而减小。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The company is starting an advertising campaign to ________its image because of the poisonous milk powder. [     ]
A.
get across
B.
take back
C.
hang about
D.
turn around
查看完整题目与答案
相关题目：
【单选题】The supply of groundwater is getting low because of ______.
A.
conservation
B.
toxic waste
C.
pollution
D.
population increase
查看完整题目与答案
【单选题】患儿男，3岁半。发热4天，伴咳嗽，流涕，眼结膜充血，流泪，半天前发现患儿耳后，颈部，发缘有稀疏的不规则红色丘斑疹，疹问皮肤正常，体温40℃，心肺正常。 该患儿最有可能发生
A.
风疹
B.
麻疹
C.
猩红热
D.
幼儿急疹
E.
水痘
查看完整题目与答案
【单选题】某工程划分4个施工过程,在5个施工段上组织固定节拍流水施工,流水节拍为3天,要求第三道工序与第四道工序间技术间歇2天,该工程的流水施工工期为( )天。
A.
39
B.
29
C.
26
D.
14
查看完整题目与答案
【单选题】咯粉红色泡沫痰提示
A.
右心衰竭
B.
左心衰竭
C.
全心衰竭
D.
心肌炎
E.
心包炎
查看完整题目与答案
【单选题】Because of the Russian gas limit to Europe, attempts _______ to use botanical fuel as a source of power.
A.
have made
B.
having made
C.
are being made
D.
will be making
查看完整题目与答案
【单选题】Which of the following statements can best indicate the author's attitude?
A.
The lack of political resolve renders an EAMU impossible.
B.
An EAMU is practical in the long run despite their regional differences.
C.
Monetary union proves to be successful in Singapore and Brunei.
D.
Monetary union in East Asia can come true in the short run because of economic cooperation.
查看完整题目与答案
【单选题】唐玄宗当政全国共有多少个驿站?
A.
1639
B.
1693
C.
1600
D.
1700
查看完整题目与答案
【单选题】Halliday stood out from the other pupils because of his ______.
A.
beautiful handwriting
B.
poor results in poetry tests
C.
good behaviour
D.
football skills
查看完整题目与答案
【判断题】一般情况下，自重应力随土层深度的增大而减小。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The company is starting an advertising campaign to ________its image because of the poisonous milk powder. [     ]
A.
get across
B.
take back
C.
hang about
D.
turn around
查看完整题目与答案