TOSI锅炉29—V1—T型空气预热器水冲洗泵的容量为()m/h,水温为()℃,转速为()r/min。
在“ge、ke、he”这组音节中,不是音位的是() ["A、“g”","B、“k”","C、“h”","D、“e”"]
日本血吸虫的保虫宿主主要是:() ["鸡、鸭等禽类","牛、犬、猪等哺乳动物","钉螺","慢性患者","隐性感染者"]
下面四个单韵母中哪一个舌位最高() ["A、“a”","B、“o”","C、“e”","D、“i”"]
日本血吸虫的主要致病阶段是:() ["成虫","尾蚴","虫卵","童虫","毛蚴"]
TOSI锅炉29—V1一T型空气预热器备用驱动电动机的汽源压力为()MPa,气源流量为()mm/min,转速为()r/min。