下述哪项属于高危家庭
A．吸毒、酗酒者家庭
B．单亲家庭
C．残疾者、长期重病者家庭
D．受社会歧视的家庭
E．以上都包括
参考答案：E
若流动比率大于1，则下列结论成立的是( )。
A．(A) 速动比率大于1
B．(B) 营运资金大于0
C．(C) 资产负债率大于1
D．(D) 短期偿债能力绝对有保障
The large size and roughly circular shape of the Pacific made some scientists think that it ______ a hole left when the moon separated from the earth.
A．used to be
B．would have been
C．might have been
D．should have been
