历史上，最早出现的责任保险险种是（）。
A.雇主责任保险
B.产品责任保险
C.职业责任保险
D.公众责任保险
参考答案：A
He called at her house in the belief _______she would lend him the money.
A．which
B．why
C．that
D．when
接地沟的回填宜选取无石块及其他杂物的泥土，并应夯实。
