
【名词&注释】
碳酸钠(sodium carbonate)、科学家(scientist)、生石灰(quick lime)、辛弃疾、化工原料(chemical material)、熟石灰(slaked lime)
[单选题].碳酸钠是重要的化工原料(chemical material),其俗称为
A. 纯碱
B. 烧碱
C. 生石灰
D. 熟石灰(slaked lime)
查看答案&解析
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举一反三:
[单选题]Volunteers want to get _______ when they help others.
A. money
B. computers
C. everything
D. nothing
[单选题]3. He can play the violin ________he can-t play it very well.
A. or
B. and
C. but
D. also
[单选题]27. Scientists ____to make the deserts into good land again.
A. carry water'
B. grow food
C. do nothing
D. study a lot
[单选题]下列和这首词有关的表述有误的一项是( )
A. 这首词的作者是南宋著名豪放派词人辛弃疾,他和苏轼并称“苏辛”。
B. “醉里挑灯看剑”是现实醉态的写照,既点明“看剑”的时间,又勾勒出词人端详宝剑的神态。
C. “八百里”既指牛名,又指连营之广,语意双关。
D. “可怜白发生”笔锋陡转,词的感情突然从高亢转为低沉,在壮志豪情的梦境中难以回转身来。
[单选题]30.
A. play
B. playing
C. plays
D. plaies
[单选题]28.
A. cool
B. cold
C. hot
D. warm
[单选题]22.Mary's parents work in ______ .
A. Beijing
B. America
C. Tianjin
D. a factory
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