有毒化学物质进入人体后引起中毒的机制（） A.局部刺激、腐蚀作

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问题单项选择题

有毒化学物质进入人体后引起中毒的机制（）

A.局部刺激、腐蚀作用和缺氧

B.麻醉作用和抑制酶的活力

C.干扰细胞或细胞器的功能

D.受体竞争

E.以上均是

答案

参考答案：E

选择题

______ the local authorities put more attention to the safety of the children, more than 20 lives __________ in Gansu Province.

A．Should, would not be claimed

B．Had, would not have been claimed

C．Should, would not be cost

D．Had, would not have been cost

选择题

按歼敌人数多少排 * * 大战役应是

①辽沈战役②平津战役③淮海战役[ ]

A．①②③

B．②③①

C．①③②

D．③②①