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【判断题】
生铁是含碳量高于2.11%的铁碳合金，含有硅、锰、硫、磷等杂质。按用途通常分为炼钢生铁和铸造生铁。()A.
正确
B.
错误
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【简答题】操纵轿厢安全钳装置的限速器的动作应发生在速度至少等于额定速度的( )。
【多选题】We can call America __________.
A.
the United States of America
B.
America
C.
the United States
D.
U.S.A
【简答题】林则徐爱国思想的核心仍然是 。
【多选题】ɑi ei ɑo ou四个复韵母的发音有何特点?
A.
发音时，口腔开口度由大到小逐渐变化。
B.
开头的元音发得响亮、清晰，时间较长，后面的元音轻而短。
C.
发音时元音之间会相互影响而发生变化。
D.
ao ou 两个韵母，归音都是 u 。
【单选题】We can learn from the text that the author believes
A.
America will be the first country to solve the supply problem of human kidneys.
B.
governments should make organ donations a compulsory act instead of a voluntary one.
C.
it makes sense to stop individuals from selling organs because the idea is very repulsive.
D.
the supply problem of human kidneys can be resolved with appropriate regulation.
【简答题】I knew they were _______ curiosity but I said nothing.
【单选题】We can conclude that ______ .
A.
education has no national boundary
B.
America attaches greater importance to education than Britain
C.
students in America receive better education than in Britain
D.
failure in education might lead to huge loss of both money and human resources
【单选题】According to the passage, we can infer that ______.
A.
the present ozone level in America is safe to people
B.
there is no direct connection between ozone and death rates
C.
the study of ozone and death rates has been done several times
D.
America has a worse problem with ozone than other countries
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