尿毒症患者以 NaHCO3 静脉注入纠正代谢酸中毒时,发生于足抽搐的机
A、血Na增高继发脑水肿
B、血Co总量降低
C、血中游离钙降低
D、血中结合钙降低
Jerry knows nothing about the plan _____ his friends told him.
A、until
B、after
C、since
D、if
You have made a few mistakes in your composition but you have done well.
A、onthewhole
B、generallyspeakingaking
C、ontheotherhand
D、firstofall
A、带正电荷的古旋糖酐分子
B、带负电荷的右旋糖酐分子
C、电中性的右旋糖酐分子
D、带负电荷的无机离子