《轧钢安全规程》规定使用煤气的生产区,其煤气危险区域的划分规定()为第三类区域。 ["煤气爆发试验","加热设备计器室","均热炉看火口","烟道检修"]
ITV出现13022,应() ["询问用户是否更换机顶盒","重启设备","重置ITV密码"]
Hello! Is that Mr Wang speaking?() ["Yes. This is Mr Wang speaking.","Yes. Can I speak to Mr Wang?","Sorry, you'd better ask Mr Wang.","No, I can't speak."]
水分过高结块霉变引起的局部粮堆发热,采取()措施以降低水分。 ["A.谷冷通风","B.就仓通风干燥","C.出仓晾晒","D.烘干"]
1940年春,中国境内并存的政权有几个?
带式压滤机主要技术参数有哪些?