目前，世界上可被人类利用的150种矿产中，我国已探明储量的就有1_爱下问搜题

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问题选择题

目前，世界上可被人类利用的150种矿产中，我国已探明储量的就有137种，居世界前列，但各类主要自然资源的人均占有量则大都低于世界平均水平。这一事实说明 [ ]

A．我国自然资源储量充足

B．我国资源环境问题严重

C．我国资源总量大，但人均占有量少

D．我国自然资源种类多，但人均占有量少

答案

答案：C

完形填空

完形填空。

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单项选择题

《安全生产法》规定，从业人员有权了解作业场所和工作岗位存在的（）。

A.危险因素、防范措施及事故应急措施

B.危险原因

C.重大隐患

D.重大危险源