心源性晕厥最常见的病因是 （）
A.严重心律失常
B.高血压脑病
C.急性心肌梗死
D.左房室瓣脱垂
E.急性心肌炎
参考答案：A
在运行win98的计算机中配置网关类似于在路由器上配置______
A．直接路由 B．默认路由 C．动态路由 D．间接路由
A pregnant client is taking folic acid. During prenatal teaching, which of the following foods would the nurse recommend as high in folic acid
A. Egg yolks.B. Fruit.C. Bread.D. Milk.
