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【单选题】
关于胎盘功能,下列哪错误的
A.
胎盘同物质交换方式有简单扩散和主动运输等不同方式
B.
胎盘会有多种酶，可将复杂化合物分解为简单物质，也能将简单物质合成后供给胎儿
C.
母体血与胎儿血在胎盘中循环相通，进行气体交换
D.
胎盘可将胎儿代谢产物送入母血，由母体排出，替代胎儿泌尿系统功能
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参考答案：
举一反三
【单选题】Many companies have a substantial number of computers.
A.
large
B.
important
C.
great
D.
material
查看完整题目与答案
【判断题】网络层的协议ARP实现物理地址转换为IP地址的功能。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Modern scientists have mad great development in building computers that can imitate logical thought. There are two schools of thought on artificial intelce(人工智能)。 Supporters of “Strong AI” consid...
查看完整题目与答案
【单选题】Computers have made a great difference _______ our everyday life.
A.
with
B.
of
C.
to
D.
for
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【简答题】钢纸制的粉盒 的商品编码为( )
查看完整题目与答案
【单选题】食品超市里营业面积的50%-70%用来销售()
A.
日用品
B.
生鲜食品
C.
常温食品
D.
时尚用品
查看完整题目与答案
【单选题】Study the following abbreviated essay outline. Then choose the most appropriate concluding paragraph. When computing technology is making an ever-increasing impact on many aspects of the production a...
A.
Although, to some extent, computers have brought people great convenience in getting information, entertainment and contact with others, especially for those businessmen, for those youngsters, typically those teenagers who are not rational enough to control themselves, computers should not be allowed to intrude into their daily life.
B.
All in all, everything has two sides. Whether computers will do us good or harm all depend on how we use them.
C.
In conclusion, I strongly believe that using computer everyday brings more benefits than drawbacks to young children. The most important aspect depends on that the young children need proper guidance.
D.
To sum up, computers benefit young children a lot and also bring about some negative influence on children.
查看完整题目与答案
【简答题】Televisions, stereos, telephones, and computers have changed the way we spend our time and what we know about the world. Some of the changes brought about by these material possessions have improved o...
查看完整题目与答案
【简答题】B. Choose the correct form of the verb to complete these paragraphs. Since computers were first introduced to the public in the early 1980’s, technology (change) 1 a great deal. The first computers (b...
查看完整题目与答案
【单选题】梁下部不伸入支座钢筋在什么位置断开( )
A.
距支座边 0.05Ln
B.
距支座边 0.5Ln
C.
支座边 0.01Ln
D.
距支座边 0.1Ln
查看完整题目与答案
相关题目：
【单选题】Many companies have a substantial number of computers.
A.
large
B.
important
C.
great
D.
material
查看完整题目与答案
【判断题】网络层的协议ARP实现物理地址转换为IP地址的功能。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Modern scientists have mad great development in building computers that can imitate logical thought. There are two schools of thought on artificial intelce(人工智能)。 Supporters of “Strong AI” consid...
查看完整题目与答案
【单选题】Computers have made a great difference _______ our everyday life.
A.
with
B.
of
C.
to
D.
for
查看完整题目与答案
【简答题】钢纸制的粉盒 的商品编码为( )
查看完整题目与答案
【单选题】食品超市里营业面积的50%-70%用来销售()
A.
日用品
B.
生鲜食品
C.
常温食品
D.
时尚用品
查看完整题目与答案
【单选题】Study the following abbreviated essay outline. Then choose the most appropriate concluding paragraph. When computing technology is making an ever-increasing impact on many aspects of the production a...
A.
Although, to some extent, computers have brought people great convenience in getting information, entertainment and contact with others, especially for those businessmen, for those youngsters, typically those teenagers who are not rational enough to control themselves, computers should not be allowed to intrude into their daily life.
B.
All in all, everything has two sides. Whether computers will do us good or harm all depend on how we use them.
C.
In conclusion, I strongly believe that using computer everyday brings more benefits than drawbacks to young children. The most important aspect depends on that the young children need proper guidance.
D.
To sum up, computers benefit young children a lot and also bring about some negative influence on children.
查看完整题目与答案
【简答题】Televisions, stereos, telephones, and computers have changed the way we spend our time and what we know about the world. Some of the changes brought about by these material possessions have improved o...
查看完整题目与答案
【简答题】B. Choose the correct form of the verb to complete these paragraphs. Since computers were first introduced to the public in the early 1980’s, technology (change) 1 a great deal. The first computers (b...
查看完整题目与答案
【单选题】梁下部不伸入支座钢筋在什么位置断开( )
A.
距支座边 0.05Ln
B.
距支座边 0.5Ln
C.
支座边 0.01Ln
D.
距支座边 0.1Ln
查看完整题目与答案
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