实行保税制度的主要形式有() ["自由港","自由贸易区","出口加工区","保税仓库"]
在建立独立的直角平面坐标系时,一般将坐标原点选在测区()以外的适当位置。 ["东北角","西南角","西北角","东南角"]
行政公文的主要作用包括领导与指导作用,()等。 ["宣传与教育作用","联系与告知作用","凭证与依据作用","历史与现实作用"]
新生儿窒息复苏的预防有哪些?
To determine if a C02 fire extinguisher is fully charged, you would(). ["operate the trigger valve","weigh the extinguisher","test with a pressure gauge","read the date of last test"]
焙烧的目的是什么?