Personal telephone conversations and emails are not allowedin theworkplace.
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It is necessary to clean the office kitchen after you use it.
A. 对
B. 错
If you use up paperin the printer, leave it alone until the next person comes.
A. 对
B. 错
高层货架仓库的层数是
A. 10层以下
B. 10层以上
C. 15层以上
D. 15层以下
高层货架仓库的高度为
A. 10米以下
B. 30米以下
C. 20米以下
D. 40米以下