【单选题】A 50-ft wave travels at speeds ______ 20 m. p. h. , and anyone who's too slow at the approach risks being smashed.
A.in excess of
B.in the reach of
C.in exchange for
D.in relation to
【单选题】A 50-ft wave travels at speeds ______ 20 m. p. h. , and anyone who's too slow at the approach risks being smashed.
A.in excess of
B.in the reach of
C.in exchange for
D.in relation to
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