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【单选题】
If you go into a store and feel that the clerk is being rude, stop and think that she____ a tough day, and put yourself in her shoes.A.
may have
B.
may have had
C.
must have
D.
should have had
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A.
keeping the terminals clean
B.
coating cable connections with petroleum jelly
C.
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D.
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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【单选题】I hereby request permission to ______ the ship hull for routine maintenance．
A.
put paint on
B.
apply paint onto
C.
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D.
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