电动机采用自耦变压器减压启动，当启动电压是额定电压的70%时，电网供给的启动电流是额定电压下启动时启动电流的（）倍。 ["0.34","0.49","0.7","1.42"]
Given: What is the result?（） ["peep","bark","meow","Compilation fails.","An exception is thrown at runtime."]
在测量储油罐时以下哪种作法是不对的？（） ["穿胶底靴到罐上去","一面抓着梯子扶手上到罐上去","从垂直降测量器测量口探头观测，一面放下测量的绳子"]
非金属管材的特点是（） ["耐氧化","耐冲击","质量轻及耐腐蚀性能好","耐振动"]
某烟草商进口甲类卷烟，报关时由海关征收（）。 ["关税","增值税","消费税","营业税"]
人均公共绿地面积
