皮皮学,免费搜题
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搜题
【单选题】
西北地区利用黄河水灌溉农业(  )
A.
宁夏平原和河套平原
B.
河西走廊和天山山麓
C.
雅鲁藏布江谷地和湟水谷地
D.
柴达木盆地和准格尔盆地
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举一反三
【判断题】投影面垂直面可分为铅垂面、正垂面两种。
A.
正确
B.
错误
【判断题】土壤发生学是道库恰耶夫创立的,他从形成土壤的因素入手分析,即认为土壤是气候、生物、母质、地形和时间等综合作用的产物。()
A.
正确
B.
错误
【简答题】medical technologies
【判断题】土壤是气候、生物、母质、地形和时间等成土因素综合作用的产物,土壤是一个独立自然体。
A.
正确
B.
错误
【简答题】传递细胞
【单选题】The Internet is based on which three key technologies?
A.
The Internet is based on which three key technologies?
B.
Client/server computing, packet switching, and HTTP
C.
Client/server computing, packet switching, and the development of communications standards for linking networks and computers
D.
TCP/IP, HTML, and HTTP
【判断题】道库恰耶夫创立了土壤发生学,从形成土壤的因素入手分析,即认为土壤是气候、生物、母质、地形和时间等综合作用的产物。()
A.
正确
B.
错误
【单选题】With multimedia technologies, people can do the following EXCEPT
A.
throwing away their radios and TVs.
B.
holding meetings or talking with others far away.
C.
learning new concepts and technologies more easily
D.
working more effectively with powerful office applications.
【多选题】Alternate dust control technologies
A.
Ventilated cutting drums
B.
Foam discharge from shearer drum
C.
Foam discharge from shearer drum
D.
Low-pressure inward-facing drum sprays
【单选题】Which of the following is true of push and pull technologies?
A.
The early Web was characterized by pushing static information.
B.
In push technologies, organizations provide users with standardized information.
C.
In pull technologies, organizations provide users with customized information based on each user's individual profile.
D.
In pull technologies, users research, find, request, and retrieve the information they want.
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