化学元素在岩石圈中存在的基本单元是[ ] A、矿物 B、矿产 C_爱下问搜题

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问题选择题

化学元素在岩石圈中存在的基本单元是[ ]

A、矿物

B、矿产

C、矿石

D、岩石

答案

答案：A

选择题

Compared with last year, our pay about ￥500 every month. [ ]

A. has increased by

B. has increased

C. increased by

D. increased to

单项选择题

全球通268元套餐包本地主叫.省内主叫.省际主叫（）分钟。

A.950

B.1000

C.1050

D.1100