具有抗癫痫和抗躁狂的药物是()
A.硫酸镁
B.地西泮
C.苯妥英钠
D.苯巴比妥
E.卡马西平
参考答案:E
Roses need special care _____ they can live through winter.
A.because
B.so that
C.even if
D.as
为什么对水泵轴向推力要及时消除?