— ________ does your mother go to work in the morning?

— She always goes to work at seven o’clock.

A．What time

B．What day

C．How long

D．How much

期货投资者保障基金的使用遵循的原则是：保障投资者合法权益和公平救助原则，()。

A．补偿额等于缴纳额

B．损失多少，补偿多少

C．实行比例补偿

D．实行会员补偿