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【单选题】
下列牌号中属于优质碳素结构钢的是( )A.
45
B.
T8
C.
1Cr18Ni9Ti
D.
9SiCr
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皮皮学刷刷变学霸
举一反三
【单选题】Paragraphs 2 and 3 are written to ______.
A.
discuss the causes of climatic irregularities.
B.
exemplify the abnormal effects of EI Nino.
C.
explain the way in which El Nino develops.
D.
show the recent observations of scientists.
【单选题】Paragraphs 2 and 3 are written to______
A.
discuss the cause of the decline of sciences power
B.
show the authors sympathy with scientists
C.
explain the way in which science develop
D.
exemplify the division of science and the humanities
【简答题】中国成立的时间是在_____。
【单选题】Unit 11-3.mp3: They will discuss about _______________tomorrow.
A.
Promoting method
B.
Territory
C.
Commission rates
【单选题】Paragraphs 2 and 3 are written to ______.
A.
discuss the cause of the decline of science's power
B.
show the author's sympathy with scientists
C.
explain the way in which science develops
D.
exemplify the division of science and the humanities
【单选题】中国共产党成立的时间是
A.
1900 年 1 月 20 日
B.
1921 年 8 月初
C.
1927 年 7 月 1 日
D.
1931 年 9 月 18 日
E.
945 年 6 月 8 日
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