单项选择题
Which of the following players was once two time French Open Champion
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A.Michael Chang.
B.Pete Sampras.
C.Sergei Brugera.
D.Jacob Hasic.
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单项选择题
If the problem is not fixed, ______.
A.the 3 - member crew would have to die
B.the 5 - member crew would have to die
C.the 5 - member crew would have to abort the mission
D.the 3 - member crew would have to abort the mission
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单项选择题
Why should governments ensure tire careful handling and recycling of the CFCs now in use
A.Because the CFCs directly damage the people’s health.
B.Because the CFCs are poisonous chemicals.
C.Because the production of the CFCs costs a lot.
D.Because the CFCs can attack ozone by liberating atoms of chlorine.
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