在工程单独承保责任保险中不包括( )。
A．职业责任险
B．附加承保责任险
C．雇主责任险
D．产品承保责任险
参考答案：B
In the past decades, sea ice _____in the Arctic as a result of global warming. [ ]
A. had melted
B. has been melting
C. melted
D. is melting
造成油罐被吸瘪的原因之一是进气量不能满足要求。
