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【单选题】

( )是在陆地上生存过的最大哺乳动物之一,灭绝于距今约一万年前。

A.
恐龙
B.
猛犸象
C.
始祖鸟
题目标签:一万灭绝万年
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参考解析:
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【单选题】Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastened the disappearance of some, abundant evidence suggests mankind has had ...

A.
Human beings have hastened the disappearance of some.
B.
There was mass extinction long before humanity's time on Earth.
C.
Human beings'activities have had great impact on the earth.
D.
Many species have extinct since the human race came into being.

【多选题】生产经营单位有下列行为之一的,责令限期改正,可以处五万元以下的罚款;逾期未改正的,处五万元以上二十万元以下的罚款,对其直接负责的主管人员和其他直接责任人员处一万元以上二万元以下的罚款;情节严重的,责令停产停业整顿;构成犯罪的,依照刑法有关规定追究刑事责任()

A.
未在有较大危险因素的生产经营场所和有关设施、设备上设置明显的安全警示标志的
B.
安全设备的安装、使用、检测、改造和报废不符合国家标准或者行业标准的
C.
未对安全设备进行经常性维护、保养和定期检测的