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They are as closely related as the lips and teeth, so to speak.

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2()

A. easy
B. short
C. high
D. difficult

Important ______ his discovery was, it was regarded as a matter of no account in his time.

A. to
B. for
C. though
D. although

I don"t think she"ll be upset, but I will see her in case ______.

A. she will
B. she does
C. she is
D. she would

1()

A. hoped
B. realized
C. told
D. said

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