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【单选题】
根据雷达避碰转向示意图推荐,对本船左舷67.5 o到右舷67.5 o之间的来船,本船应在来船距离本船( )采取避碰行动。A.
4 ~6n mile
B.
3 ~5n mile
C.
2~4n mile
D.
2 ~3n mile
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举一反三
【单选题】What is implied about Newman's juggling of school and play?
A.
He studies hard and spends more time on it than on play.
B.
He spends more time running companies than studying.
C.
He has no time playing because of school and work.
D.
He never minds how much time he spends on study.
【单选题】Tony's sister spends five hours ______ the piano every day. [ ]
A.
play
B.
plays
C.
playing
D.
to play
【简答题】铸造铝合金包括 、 、 和 等系列合金。
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