超声波在介质中的传播速度与频率成正比。()
参考答案:错
-We want someone to design the new art museum for us.
______the young fellow have a try ?
A.May
B.Shall
C.Will
D.Need
一名猝死病人被送至抢救室,此时抢救室的护士应
A.让病人提前就诊B.按入科顺序进行救治C.报告医生等待抢救医嘱D.了解病人发病情况E.立即进行人工呼吸、心外按压