【名词&注释】
运载火箭(launch vehicle)、因地制宜(local conditions)、金属材料(metal materials)、错别字(wrongly written characters)、根深蒂固(inveteracy)、化学方程式(chemical equation)、化学式(chemical formula)、吹毛求疵(cavil)、互作用力(interaction force)、任劳任怨
[单选题]关于磁体和磁场,以下说法中错误的是
A. 悬挂起来的小磁针静止时,小磁针的北极指向地理的北极附近
B. 铁、铜、铝等金属材料都能够被磁化
C. 磁体之间的相互作用力(interaction force)是通过磁场而发生的
D. 通电导体周围一定存在磁场
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学习资料:
[单选题]运载火箭的主要燃料是偏二甲肼(用R表示),其反应的化学方程式为:R + 2N2O4 == 3N2 + 4H2O + 2CO2,则偏二甲肼的化学式(chemical formula)是
A.
B. C2H8N2
C. N2H4
E. CH4
G. C6H7N
[单选题]下列词语中有错别字的一项是
A. 亵读 憔悴 顾名思意 肃然起敬
B. 瓦砾 制裁 任劳任怨 因地制宜
C. 挑衅 祈祷 根深蒂固 吹毛求疵(cavil)
D. 污秽 荫庇 人声鼎沸 怡然自得
[单选题]Which of the following is not talked in the passage as which can help us communicate?
A. books and magazines
B. TV and films
C. newspapers
D. radio
[单选题]have a sore throat.
__________ you should see a doctor.
A. May
B. Maybe
C. Can
D. Maybe
[单选题]2. Lily and Lucy often leave__________ school __________ half past seven.
A. from,to
B. for,in
C. to,from
D. for,at
[单选题]There are many clouds coming,it_________ rain soon.
A. will be
B. is going to
C. looks like
D. likes
[单选题]24. What would happen to a student who often goes to bed late and gets up early?
A. He would fall asleep in class.
B. He would do well in study.
C. He would finish his homework fast.
D. He would have good health.
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