【C7】
A.coming
B.next
C.future
D.last
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【B9】
A.common
B.similar
C.different
D.alike -
Making energy use completely harmless to the environment__ very difficult and usually economically expensive.
A.is
B.are
C.have been
D.shall be -
Compared with homes without smoke detectors homes with them give their owners a 50% better chance of______.
A.surviving a fire
B.preventing a fire
C.detecting a hidden fire
D.not getting injured in a fire -
以前有几项研究表明,食用巧克力会增加食用者患心脏病的可能性。而一项最新的、更为可靠的研究得出的结论为:食用巧克力与心脏病发病率无关。估计这项研究成果公布之后,巧克力的消费量将会大大增加。上述推论基于以下哪项假设?
A.大量食用巧克力的人中,并不是有很高的患心脏病的比例。
B.尽管有些人知道食用巧克力会增加忠心脏病的可能性,却照样大吃特吃。
C.人们从来也不相信进食巧克力会更容易患心脏病的说法。
D.现在许多人不吃巧克力完全是因为他们相信巧克力会诱发心脏病。 -
Doctor: What seems to be the matter? Patient: Well, my heartbeat is fast and I have trouble breathing recently.Doctor: __ Your weight is giving much burden on your heart.
A.I have to give you some medicine.
B.I'm sorry. Your weight is a problem.
C.You need some exercises.
D.I'm afraid you have to lose at least 40 pounds.