A.有利于开展业务B.行政管理费用比较低C.有利于进行创造性的经营管理D.有利于收回投资E.有利于进行国际避税
单项选择题设NA为阿伏加德罗常数,下列说法正确的是( )A.23gNa在氧气中完全燃烧失电子数为0.5NAB.1L2mol·L-1的MgCl2溶液中含Mg2+数为2NAC.标准状况下,11.2LSO3所含分子数为0.5NAD.室温下,8g甲烷含有共价键数为2NA
单项选择题History ________ many cases ________ settlers moved into areas that belonged to other people. A. counts; in which B. count; that C. counts; which D. counting; in which