下列说法中正确的是( ) A.实数-a2是负数 B.a2=|a| C.|-a|一定是正 发布时间:2017-05-14 20:07 │ 来源:www.tikuol.com 题型:选择题 问题: 下列说法中正确的是( )A.实数-a2是负数B.a2=|a|C.|-a|一定是正数D.实数-a的绝对值是a
题型:选择题 .Britain, ______ many other industrialized countries, ______ major changes over the last 100 years.A.together with; have experiencedB.as well as; have experiencedC.in common with; has experiencedD.instead of; has experienced 查看答案