治疗癫痫持续状态的首选药物是()
A.水合氯醛
B.苯巴比妥钠
C.地西泮
D.甘露醇
E.苯妥英钠
参考答案:C
当地理上的紧密接近能够为企业产生外在利益时,就出现了( )。
A.规模效益B.聚集经济效益C.区位经济效益D.城市化经济
It’s suggested that some activities to celebrate the 30th anniversary of the Reform and Opening-up.
A.should hold
B.are held
C.be held
D.will be held