低压一次设备:用来接通或断开()以下的交流和直流电路的电气设备。
参考答案:1000v
卵子自卵巢排出后,正常情况下受精是在输卵管的()。
A.伞部
B.峡部
C.壶腹部
D.间质部内
E.内侧1/3处
Which pregnancy-related physiologic change would place the client with a history of cardiac disease at the greatest risk for developing severe cardiac problems()
A. Decreased heart rate.
B. Decreased cardiac output.
C. Increased plasma volume.
D. Increased blood pressure.