非磺酰脲类胰岛素分泌促进剂().
A.甲苯磺丁脲
B.盐酸二甲双胍
C.瑞格列奈
D.伏格列波糖
E.胰岛素
参考答案:C
The young pioneers kept on working in the fields ________ they felt tired and thirsty.[ ]
A. but
B. or
C. even though
D. since
Ⅰ型呼吸衰竭主要见于()
A.内呼吸障碍
B.通气功能障碍
C.气体运输障碍
D.肺换气障碍
E.以上都不对