以下几种资源属于非可再生资源的是()。
A.河水
B.铁矿
C.耕地
D.森林
参考答案:B
解析:
铁矿属于非可再生资源。
悬吊着的磁针静止时,指南的那端叫______极,指南针,罗盘能够指示南北,就是因为受到地磁场的作用.
He had a wide _______ of interests, which made him a popular person that all of us like to make
friends with.
A.world
B.variety
C.various
D.difference