签订机动车交通事故责任强制合同时，其保险费实行（）的缴纳方式。
A.一次性付清
B.分期等额支付
C.分期变额支付
D.协商约定
参考答案：A
35. —It took me ten years to build up my business, and it almost killed me.
—Well, you know what they say, “___________.”
A．There is no smoke without fire;
B．Practice makes perfect;
C．All roads lead to Rome;
D．No pains, no gains
配制生物制品的注射用水，其储存时间不应超过（）。
A.7小时
B.6小时
C.4小时
D.3小时
E.5小时
