涂装车间规定()不准补漆。 ["A级面","B级面","C级面","D级面"]
以下属于兴业银行总A级建筑施工企业的是()
After a fire has been extinguished in a closed space, personnel may safely enter the space when (). ["smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance","a lifeline and explosion proof flash light are used","all smoke and toxic fumes are removed and an adequate oxygen supply is present","overhaul has been completed to remove any possible source of re-ignitio"]
用万用表检测二极管时,测得二极管的正反向电阻比较接近于零电阻值,说明() ["二极管已短路,没有用","二极管已断路,没有用","二极管是好的","万用表内部有问题,二极管没问题"]
Releasing oil from the sea anchor of a survival craft may(). ["keep the propeller from being fouled","increase propeller speed","help calm the waves in the vicinity of the craft","increase the holding power of the sea anchor"]
全行业要思考、谋划、实践的“三大课题”是什么?