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【单选题】
超文本传送协议是( )?A.
URI
B.
HTML
C.
Web
D.
HTTP
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】marine insurance
【简答题】ocean marine cargo insurance clauses
【单选题】What is the main topic of this lecture?
A.
The cause of marine mammal deaths.
B.
How marine mammals communicate.
C.
A comparison of dolphin and whale language.
D.
The effects of sonar on mammal communication.
【单选题】The coastline of Canada is long and important in providing marine access to marine resources. Among them, the______coasts are less important than others.
A.
northern
B.
southern
C.
eastern
D.
western
【单选题】According to marine ecologists, transplanted marine species
A.
may upset the ecosystems of coastal waters.
B.
are all compatible with one another.
C.
can only survive in their home waters.
D.
sometimes disrupt shipping lanes.
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