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【单选题】
锚泊中负责航行值班的驾驶员应___。1确保正规的瞭望;2确保定时巡视船舶;3采取措施防止船舶污染环境,并遵守适用的防止污染规则;4任何情况下,不得离开驾驶台。A.
①②③④
B.
①②③
C.
①②
D.
①
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【简答题】He had learned Chinese _________ he came to China.
【多选题】丹霞地貌发育在红色砂砾岩地区，为红色砂砾岩在内外营力作用下发育而成的特殊地貌，属于此种地貌的景区有( )。
A.
浙江雁荡山
B.
福建武夷山
C.
广东金鸡岭
D.
云南路南石林
E.
安徽黄山
【单选题】-Why are you so late,Tom? -I was on half the way when it_________to me that I had left my notebook at home,so I had to fetch it. [ ]
A.
occurred
B.
hit
C.
happened
D.
reminded
【单选题】He had learned enough German to _____ a conversation. [ ]
A.
carry out with
B.
carry on
C.
continue on
D.
carry
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