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【单选题】
13 动物小肠细胞对葡萄糖的吸收依靠( )
A.
钠离子梯度驱动的同向协同运输
B.
钠离子梯度驱动的同反向协同运输
C.
钾离子梯度驱动的同向协同运输
D.
钾离子梯度驱动的反向协同运输
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【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain an...
A.
gasoline
B.
natural gas
C.
atomic power
D.
animal fat
查看完整题目与答案
【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds mankind. Each year it【21】men with two hundred million tons of grain and【22】ten million ton...
A.
gathers
B.
produces
C.
provides
D.
sends
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【单选题】The most important benefit from the property boom is
A.
the criticism from the local press about the affordability of housing in Hong Kong
B.
the increased price of the luxury flats．
C.
the more secure way of controlling the sale of the flat．
D.
the rise in the percentage of mainland borrowers in Hong Kong over the past three years．
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【单选题】下列属于深反射的是
A.
咽反射
B.
桡骨骨膜反射
C.
角膜反射
D.
提睾反射
E.
跖反射
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【判断题】赤霉病多发生于炎热、干旱地区。
A.
正确
B.
错误
查看完整题目与答案
【单选题】评定钢材强度的基本指标是（）
A.
抗压强度
B.
轴向抗压强度
C.
抗弯强度
D.
抗折强度
查看完整题目与答案
【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain an...
A.
gasoline
B.
natural gas
C.
atomic power
D.
animal fat
查看完整题目与答案
【单选题】下列关于细胞破碎的描述不正确的是( )
A.
目的是使胞内产物获得最大程度的释放
B.
破碎的难易程度不同，膜易破，壁较难
C.
是分离纯化细胞内合成的分泌型物质成分的基础
D.
要注意防止破碎过程中所需物质的变性或被胞内的酶水解
查看完整题目与答案
【单选题】Why does the groundwater from the north finds its way into the canyon, but the water from the south doesn't?
A.
Because there are fractures in the rocks in the south.
B.
Because the southwest part of the underlying rock beds are a bit lower than those in the opposite direction.
C.
Because the pressure of the upper streams forces the water to flow in from the north and flow away from the south.
D.
The reason is not mentioned in the passage.
查看完整题目与答案
【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds mankind. Each year it provides men with two hundred million tons of grain and nearly ten m...
A.
directly from the sun
B.
from the sun' s activity
C.
from energy stored by the sun
D.
from radiation of the sun
查看完整题目与答案
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【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain an...
A.
gasoline
B.
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C.
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D.
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【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds mankind. Each year it【21】men with two hundred million tons of grain and【22】ten million ton...
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gathers
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【单选题】The most important benefit from the property boom is
A.
the criticism from the local press about the affordability of housing in Hong Kong
B.
the increased price of the luxury flats．
C.
the more secure way of controlling the sale of the flat．
D.
the rise in the percentage of mainland borrowers in Hong Kong over the past three years．
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【单选题】下列属于深反射的是
A.
咽反射
B.
桡骨骨膜反射
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角膜反射
D.
提睾反射
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【判断题】赤霉病多发生于炎热、干旱地区。
A.
正确
B.
错误
查看完整题目与答案
【单选题】评定钢材强度的基本指标是（）
A.
抗压强度
B.
轴向抗压强度
C.
抗弯强度
D.
抗折强度
查看完整题目与答案
【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain an...
A.
gasoline
B.
natural gas
C.
atomic power
D.
animal fat
查看完整题目与答案
【单选题】下列关于细胞破碎的描述不正确的是( )
A.
目的是使胞内产物获得最大程度的释放
B.
破碎的难易程度不同，膜易破，壁较难
C.
是分离纯化细胞内合成的分泌型物质成分的基础
D.
要注意防止破碎过程中所需物质的变性或被胞内的酶水解
查看完整题目与答案
【单选题】Why does the groundwater from the north finds its way into the canyon, but the water from the south doesn't?
A.
Because there are fractures in the rocks in the south.
B.
Because the southwest part of the underlying rock beds are a bit lower than those in the opposite direction.
C.
Because the pressure of the upper streams forces the water to flow in from the north and flow away from the south.
D.
The reason is not mentioned in the passage.
查看完整题目与答案
【单选题】All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds mankind. Each year it provides men with two hundred million tons of grain and nearly ten m...
A.
directly from the sun
B.
from the sun' s activity
C.
from energy stored by the sun
D.
from radiation of the sun
查看完整题目与答案