В.Образуйте краткие формы страдательных п

关于阵发性睡眠性血红蛋白尿症的叙述，正确的是 （）

A.由于病变来源于造血干细胞的突变，因此被认为是一种克隆病

B.多继发于再生障碍性贫血

C.蔗糖溶血试验为其确诊试验

D.受累的细胞局限于红细胞

E.Ham试验为其筛选试验

句型转换，每空一词。

1. They can hardly do the things they like. (改为反意疑问句)

    They can hardly do the things they like ______ ______?

2. I have been collecting stamps for many years. (对画线部分提问)

    ______ ______ you been collecting stamps?

3. We saw him go into a shop yesterday afternoon. (改为被动语态)

    He was ______ ______ go into a shop yesterday afternoon. (同义句改写)

4. If you don't study hard, you will fall behind others. (同义句改写) 

    ______ you study hard, you ______ catch up with others.

5. She became strong day by day as he took exercise. (同义句改写)

    The ______ exercise she took, the ______ she became.

男性患者，62岁，下肢胀痛，大便稀结交替5年，最近出现排脓血便，消瘦，里急后重。

要明确诊断，下列哪项检查列为首选（）

A.CT

B.大便隐血

C.大便常规

D.直肠B超

E.直肠镜检

质量特性值是定性表示的质量特性或称质量适用性参数（）

失业人员职业培训的组织原则包括：针对性原则、（）、有效性原则

A、实用性原则

B、统一性原则

C、特殊性原则

D、理论性原则