下列哪项试验是检测深静脉通畅情况的

A．Trendelenburg试验

B．Buerger试验

C．Pratt试验

D．Perthes试验

E．Branham试验

根据所给首字母填空。

1. My mother is a doctor.She works in a h      .

2. My father is a teacher.He works in a s      .

3. My brother is a worker.He works in a f      .

4. My parents work on a farm.So they are f      .

5. My little sister studies at a school.So she is a s      .