单项选择题
Which famous Chinese recipe would include pork tenderloin, several varieties of mushrooms, eggs, bamboo shoots, scallions, garlic and ginger all wrapped in a pancake?
单项选择题 某厂#1机组B级检修25天,“十一”期间备用60小时,其余时间两台机组全出力运行。该厂当年运行系数是()
未知题型 反刍动物的胃本体是( ),能分泌胃液。
问答题 为什么每个风井必须安装2套同等能力的主要通风机?