TV二次回路压降与（）。
A.一次电压有关
B.二次电压有关
C.TV参数有关
D.回路及负载参数有关
参考答案：D
女性，50岁，混合痔环切术后，为防止出血，禁止灌肠的时间是术后（）
A.1～2d
B.3～4d
C.5～6d
D.7～10d
E.15d
The rescue work _______ three parts, of which saving the people’s lives is the most important one.[ ]
A. makes up of
B. consists of
C. links of
D. divides into
