A lot of tents, drinking water and food __________ to the homeless earthquake survivors in the past several weeks.

A．are sent

B．were sent

C．have been sent

D．had been sent

一位伤者触高压电倒下，心跳呼吸停止，立即采取的措施为（）

A.立即使伤者脱离高压电区

B.立即心肺复苏

C.立即拨打120电话

D.去叫人一同抢救

E.立即进行体检