【10.14 Interactive Post】Come on, everyone, let’s interact with each other and see who can answer correctly. Please reply as soon as possible, otherwise you won’t get any points, because...

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【10.14 Interactive Post】Everyone, let’s interact together and see who can answer correctly. Please reply as soon as possible, otherwise you won’t get points, as my number of scores is limited! The occupational disease prevention facilities for construction projects shall be ( ) with the main project. 　　A. Design simultaneously, and put into production and use simultaneously. B. Design simultaneously, construct simultaneously, and put into production and use simultaneously. C. Construct simultaneously, and put into production simultaneously. D. Design simultaneously, and construct simultaneously. For work positions that pose serious risks of occupational diseases, ( ) should be installed in a prominent location there. 　　A. Warning mark B. Warning mark and Chinese warning instructions C. Warning instructions D. Warning wording