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问题 单项选择题

单位对新从业人员，应进行( )、( )、( )三级安全生产教育培训。

A．厂(矿)，车间(工段、区、队)，班组

B．厂(矿)，车间(工段、区、队)，岗位

C．车间(工段、区、队)，班组，岗位

D．厂(矿)，班组，岗位

答案

参考答案：A

单项选择题 A1/A2型题

在影响毒物对机体作用的因素中，哪一种状况和条件是错误的（）

A.接触毒性大的毒物，就一定会中毒

B.挥发性毒物，吸入中毒危险大

C.接触一定剂量的毒物，可能会中毒

D.毒物浓度与作用时间是中毒的必须条件

E.个体感受性是中毒难易的重要条件
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单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues.Imagine receiving an （71） from a friend who asks you to open it. This is what happens with Melissa and several other similar email （72） . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages （73） .As administrators seek to block dangerous email attachments through the recognition of well-known （74） , virus writers use other extensions to circumvent such protection.Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the （75） access to your network.

A．memory

B．caches

C．ports

D．registers
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