对心力衰竭病人进行择期手术，应在心力衰竭控制后多长时间再行手术
A．3天以后 B．1周以后 C．2周以后 D．3-4周以后 E．以上都不是
参考答案：D
行车中发现左侧轮胎漏气时怎样处置？
A、慢慢制动减速B、迅速制动减速C、迅速向右转向D、采取紧急制动
A large number of new schools __________ to help those left-behind children next year.
A．will build
B．will be built
C．were built
D．are built
