测量下肢血压时，病人应采取何种体位（）。 A.俯卧位 B.仰卧位 C.侧卧位 D.坐

行食管吞钡检查，见到下列哪个征象，有助于确定前述之诊断

A．局部食管黏膜影呈串珠样改变

B．未见明显异常影像，食管运动良好

C．食管下端呈光滑的鸟嘴状狭窄

D．黏膜光滑完整，食管腔外压迫

E．食管黏膜皱襞增粗断裂，局限性管壁僵硬

按要求变化下列各句。

1. "Are they going to Hong Kong?" Lucy asked me. (改为直接引语)

    Lucy asked me if __________.

2. I have lived in Shanghai since I was born. (对画线部分提问)

    ________ have you lived in Shanghai?

3. Xiao Li's father has already finished reading the book. (改为否定句)

    Xiao Li's father __________ finished reading the book __________.

4. Millions of people all over the world enjoy Disneyland. (改为被动语态)

   Disneyland ______________ millions of people all over the world.

5. Kate has had the silk hat for three years. (改为一般过去时)

    Kate _____ the silk hat three years _________.

下列各项，不属于桃核承气汤证临床表现的是（）

A.小便自利

B.神志如狂

C.胸胁苦满

D.至夜发热

E.脉象沉实

硬件质量特性的内在特性有（）

A.结构

B.气味

C.性能

D.精度

E.色泽

牺牲阳极的阴极保护是由于管道上原来的腐蚀电池阳极的（）比外加牺牲阳极的电位要高，整个管道就成为阴极。

A、电压

B、电流

C、电极

D、电极电位