A:16
B:2
C:12
D:15
The factory ______ its waste into the river, but now it deals with the waste in a new way.
如图所示是地磁场的磁感线分布图,请在图丙中标出地磁体的NS极.
“你幸福吗?”“我姓曾。”央视《走基层·百姓心声》节目中看似文不对题,却令人遐想连篇的回答在网络火速走红,由此可见人们对幸福生活的追求与向往。请你为使人民过上更加幸福美好的生活提几点建议?