肝硬化导致门脉高压的表现有（） A．腹水 B．蜘蛛痣 C．上腹饱胀 D．颈静脉怒张

该病儿需做的首要检查是（）

A.血常规

B.血培养及肥达反应

C.肝功能

D.OT试验

E.胸部X线片

下列关于金属钠及其化合物的叙述正确的是：（　　）

①烧碱又称纯碱  ②钠原子最外层电子只有1个电子，所以在化合物中钠只显+1价  ③过氧化钠中阴阳离子个数比为1：1  ④钠离子具有还原性，可以从水中还原出氢气  ⑤等物质的量的NaHCO₃与Na₂CO₃分别于足量的盐酸反应，产生的CO₂量相等，但反应速率前者快．

A．①②③

B．③④⑤

C．②⑤

D．①②⑤

阅读理解

     Much as Robby tried, he lacked the sense of tone and basic rhythm (节奏). But he dutifully reviewed

his lessons. Over the months he tried and tried, and often repeated to me "My mom's going to hear me

play some day."

    But he seemed hopeless, with no born ability. A real bad advertisement for my teaching! I was so

happy when one day he stopped coming.

    Several weeks later my students were to have a recital (演奏会). To my surprise, Robby came, asking

to play in the recital.

     "But, it is for current pupils; you dropped."

     "My mom was sick. But I have been practicing. I've just got to play!"

    I didn't know what led me to agree, maybe...

    The recital came. I__put__Robby__up__last__to__play__before__my__"curtain__closer", by which,

I could save the recital if...

    The recital went on well.  Robby came up on stage, clothes wrinkled and his hair looked like he'd run

an eggbeater through it. "How could his mom...?"

     Robby pulled out the piano bench and began. It was Mozart's work! I was not prepared for what I

heard next. Like in a dream, I was then woken up by the wild applause-everybody was on their feet!

     "I've never heard you play like that, Robby! How'd you do it?"

    Through the microphone Robby explained: "Well, Miss Hondorf, remember I told you my mom was

sick? Actually she had cancer and died this morning. She was born deaf, and tonight was the first time

she ever heard me play. I wanted to make it special."

     My eyes were wet. He was not a student of mine, but a teacher!

1. We can infer from the underlined sentence that the writer ________.

A. was fully confident that Robby would perform well in the recital

B. thought that Robby would make the recital special

C. thought that Robby wouldn't play in the recital

D. had no confidence in Robby at all in the recital

2. What made the boy succeed in the recital?

A. Love for his mother.    

B. Musical talent.

C. The writer's help.      

D. Regular practice.

3. What made the writer think that Robby was her teacher, not a student?

A. That he played better than her in the recital.

B. That he loved his mother more than she did.

C. That he never gave up.

D. That the audience gave him more applause than her.

4. What is the highlight of the recital?

A  The writer's performance.

B. Robby's performance.

C. Robby and his mom's story.

D. The audience's applause.

通风空调设备安装说明中，设备安装项目的基价中不包括设备费和应配备的地脚螺栓价值。（）

行为的建立和改变是一个长期的过程，必须坚持的原则是（）。

A.思想性和科学性统一

B.理论联系实际

C.循序渐进和反复教育

D.因人施教

E.正面教育