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。