单项选择题
It can be inferred from the passage that the shell should be ______.
A.fancy-looking
B.waterproof
C.easily breakable
D.extremely strong
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单项选择题
A.In San Francisco.B.In Washington.C.In Chicago.D.In New York.
A.In San Francisco.
B.In Washington.
C.In Chicago.
D.In New York.
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