【多选题】生产开始前应当进行检查,请选出正确的检查项目
C.
确保设备和工作场所没有上批遗留的产品、文件或与本批产品生产无关的物料
【单选题】【纺织】当发现液化气钢瓶内残液过多时,应送往()进行处理,严禁乱倒残液。
【简答题】A.They have all kinds of rooms you may look for. B.They, like resort hotels, are usually on the coast. C.They have spacious parking place. D.They provide better services than inns and lodges.
【单选题】机组 任一轴承冒烟断油或回油温度急剧升高至( )时,立即打闸停机。
【单选题】光圈 f/16 比 f/8 少( )级曝光。
【单选题】机组任一轴承冒烟断油或回油温度急剧升高至()时,立即打闸停机。
【单选题】Wild crocodiles are not seen in England now because ______.
A.
they have all been shot
B.
they are too dangerous
C.
they are all hiding under the earth
D.
they could not get used to the cold weather
【单选题】光圈 f/16 比 f/8 少( )级曝光