英译汉:“free of charge;in force”,正确翻译为( )。
A.零钱;生效B.零钱;强迫C.免费;强迫D.免费;生效
参考答案:D
选择填空。
You'd better ______ in the class. [ ]
A. to talk
B. talk
C. not to talk
D. not talk
癫痫持续状态应首选下列哪种药物()
A.苯妥英钠
B.地西泮
C.硫酸镁
D.卡马西平
E.苯巴比妥