患者，男性，46岁。因黑便，伴呕吐3日入院，病前有10余年胃溃疡病史，查体：贫血貌，皮肤无黄染，左锁骨上内侧可触及质硬而固定的淋巴结。
入院后第3天，患者突然出现呕血，呕出暗红色血液700ml，此时，对该患者要采取的首要护理措施是（）
A.卧床休息，安慰患者
B.开放静脉通道，补充血容量
C.监测心率、体温、呼吸变化
D.给氧
E.血红蛋白测定
参考答案：B
阅读理解。
Here are some short messages. Emma got all of them on her mobile phone yesterday.
Please read them carefully and find the best answers to the questions.
Hey,Emma, l'm going to have a party this weekend.
Would you come and join us? (From Susan: 13823636790)
Emma,"Home Alone V"is now on show at People's.
Would you come and See this film? (Vicky: 13096752112)
Emma, Mr Lee said your computer is OK now.
You can goand get it from 10:00 am to6:00 pm.(James: 13654243555)
Emma,Buy some fruits on your way home. Thanks. (From jessie: 13372320909)
1. What did Emma get yesterday?
A. Some letters.
B. Some books.
C. Some messages.
D. Some e-mails.
2. What did Mr Lee do for Emma?
A. He fixed up her computer.
B. He bought her a film ticket.
C. He helped her buy some fruits.
D. He helped her answer the phone call.
3. What is "Home ALone V"?
A. A book.
B. A game.
C. A song.
D. A film.
4. Who asked Emma to call back?
A. Susan.
B. Jessie.
C. Vicky.
D. James.
5. If Emma wants to go to the party this weekend, what number should she send a message to?
A. 13096752112
B. 13654243555
C. 13372320909
D. 13823636790