问题
单项选择题
对于需要准入密闭空间的特征，不包含( )。
A．可能产生职业有害因素
B．可能对进入者产生吞没危害
C．不具有内部结构，易使进入者落入引起窒息或迷失
D．其他严重职业病危害因素
答案
参考答案：C
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对于需要准入密闭空间的特征，不包含( )。
A．可能产生职业有害因素
B．可能对进入者产生吞没危害
C．不具有内部结构，易使进入者落入引起窒息或迷失
D．其他严重职业病危害因素
参考答案：C
Professor Williams lived alone and he was very ．He used to arrive at the university to give a lecture and find that he had forgotten to bring his notes．Or he would lose his spectacles and be unable to see the ．He could never find any chalk to with，and he often forgot the time and would ramble(漫谈)on for hours because he had his watch at home．But the most thing of a11 about him was his ．His overcoat was rarely ，as most of the buttons were ．His shoes were usually untied because he had lost the laces．He must have lost his comb as well because his hair was always standing on．His trousers were by an old tie instead of a belt．He was a chain smoker．He would smoke in class．Cigarette ash was liberally scattered over his waistcoat．
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