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【单选题】
(2016年) 日光浴一般于婴儿早餐后
A.
0.5小时内为宜
B.
1～1.5小时为宜
C.
2～2.5小时为宜
D.
2.5～3小时为宜
E.
3～3.5小时为宜
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举一反三
【单选题】对于要求制动准确、平稳的场合，应采用（ ）。
A.
反接制动
B.
能耗制动
C.
电容制动
D.
再生发电制动
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【单选题】Modern industry must have developed ______ .
A.
before the Middle Ages
B.
around the 19th century
C.
in Greece or Rome
D.
machines to take tests
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【单选题】The Adventures of Huckleberry Finn, _______ the USA in the mid 19th century, _______ a masterpiece.
A.
set in; proves
B.
setting in; is proved
C.
is set in; proves
D.
was set in; is proved
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【判断题】荧光渗透检测时,由于是暗视场显像,故无缺陷区域呈黑色。
A.
正确
B.
错误
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【判断题】当要求三相异步电动机制动准确,平稳时一般采用反接制动方法。()
A.
正确
B.
错误
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【单选题】The major problems with America's railroad system in the mid 19th century lay in______.
A.
poor quality rails and unreliable stopping systems
B.
lack of financial support for development
C.
limited railroad lines
D.
lack of a transcontinental railroad
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【单选题】By the mid-1980s, farmers in Denmark ______.
A.
used 50 per cent less fertiliser than Dutch farmers.
B.
used twice as much fertiliser as they had in 1960.
C.
applied fertiliser much more frequently than in 1960.
D.
more than doubled the amount of pesticide they used in just 3 years.
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【简答题】黄曲霉毒素( AFT 或 AT )是由 和 产生的一类代谢产物,具有极强的毒性和致癌性,基本结构中均有一个 和一个 。
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【单选题】“人是天然的政治动物”这一观点由（）提出。
A.
柏拉图
B.
苏格拉底
C.
色诺芬
D.
亚里士多德
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【单选题】The major problems with America's railroad system in the mid 19th century lay in ______.
A.
limited railroad lines
B.
lack of a transcontinental railroad
C.
lack of financial support of development
D.
poor quality rails and unreliable stopping systems
查看完整题目与答案
相关题目：
【单选题】对于要求制动准确、平稳的场合，应采用（ ）。
A.
反接制动
B.
能耗制动
C.
电容制动
D.
再生发电制动
查看完整题目与答案
【单选题】Modern industry must have developed ______ .
A.
before the Middle Ages
B.
around the 19th century
C.
in Greece or Rome
D.
machines to take tests
查看完整题目与答案
【单选题】The Adventures of Huckleberry Finn, _______ the USA in the mid 19th century, _______ a masterpiece.
A.
set in; proves
B.
setting in; is proved
C.
is set in; proves
D.
was set in; is proved
查看完整题目与答案
【判断题】荧光渗透检测时,由于是暗视场显像,故无缺陷区域呈黑色。
A.
正确
B.
错误
查看完整题目与答案
【判断题】当要求三相异步电动机制动准确,平稳时一般采用反接制动方法。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】The major problems with America's railroad system in the mid 19th century lay in______.
A.
poor quality rails and unreliable stopping systems
B.
lack of financial support for development
C.
limited railroad lines
D.
lack of a transcontinental railroad
查看完整题目与答案
【单选题】By the mid-1980s, farmers in Denmark ______.
A.
used 50 per cent less fertiliser than Dutch farmers.
B.
used twice as much fertiliser as they had in 1960.
C.
applied fertiliser much more frequently than in 1960.
D.
more than doubled the amount of pesticide they used in just 3 years.
查看完整题目与答案
【简答题】黄曲霉毒素( AFT 或 AT )是由 和 产生的一类代谢产物,具有极强的毒性和致癌性,基本结构中均有一个 和一个 。
查看完整题目与答案
【单选题】“人是天然的政治动物”这一观点由（）提出。
A.
柏拉图
B.
苏格拉底
C.
色诺芬
D.
亚里士多德
查看完整题目与答案
【单选题】The major problems with America's railroad system in the mid 19th century lay in ______.
A.
limited railroad lines
B.
lack of a transcontinental railroad
C.
lack of financial support of development
D.
poor quality rails and unreliable stopping systems
查看完整题目与答案