高血压伴支气管哮喘患者不易选用（） A．异丙肾上腺素 B．麻黄碱 C．氨茶碱 D．色

阅读理解

     "Get your hands off me, I have been stolen, " the laptop, a portable computer, shouted. That is a new

solution to laptop computer theft: a program that lets owners give their property a voice when it has been

taken.

     The program allows users to display alerts on the missing computer's screen and even to set a spoken message. Tracking software for stolen laptops has been on the market for some time, but this is thought

to be the first that allows owners to give the thief a piece of their mind.

    Owners must report their laptop missing by visiting a website, which sends a message to the model: a

red and yellow "lost or stolen" sign appears on its screen when it is started. Under the latest version(版本) of the software, users can also send a spoken message.

     The message can be set to reappear every 30 seconds, no matter how many times the thief closes it.

"One customer sent a message saying, 'You are being tracked. I am right at your door', " said Carrie

Hafeman, chief executive of the company which produces the program, Retriever.

     In the latest version, people can add a spoken message. For example, the laptop's speakers will say, "Help, this laptop is reported lost or stolen. If you are not my owner, report  me now."

    The Retriever software package, which costs $29.95 but has a free trial period, has the functions of

many security software programs. Owners can remotely switch to an alternative password prompt if they

fear that the thief has also got hold of the access details.

    If a thief accesses the Internet with the stolen laptop, Retriever will collect information on the Internet

service provider in use, so that the police can be alerted to its location.

Thousands of laptops are stolen every year from homes and offices, but with the use of laptops increasing, the number stolen while their owners are out and about has been rising sharply.

     Other security software allows users to erase data remotely or lock down the computer.

1. The expression "to give the thief a piece of their mind" can be understood as "________".

A. to give the thief an alert mind

B. to express the owners' anger to the thief

C. to remind the thief of his conscience

D. to make the thief give up his mind

2. Different from other security software, Retriever can ________.

A. record the stealing process        

B. help recognize the lost laptop

C. lock down the computer remotely  

D. send a spoken message

3. One function of the program is that it allows the owner to ________ at a distance.

A. change some access details for switching on the laptop

B. turn on the laptop by using the original password

C. operate the laptop by means of an alternative password

D. erase the information kept in the stolen laptop

4. Which of the following can best summarize the main idea of the passage?

A. With no Retriever, thousands of laptops are stolen every year.

B. A new software provides a means to reduce laptop theft.

C. Retriever has helped to find thieves and lost computers.

D. A new program offers a communication platform with the thief.

5. What does the word "it" in Para. 4 refer to?

A. The alert message.    

B. The computer.

C. The program.        

D. The laptop.

CRF进行性恶化机制的学说有（）、（）、（）、（）等。

患者女性，12岁，阵发性腹痛伴黑粪一天入院。体格检查发现：四肢皮肤有散在的出血点，腹平软，脐周有压痛。实验室检查：WBC8.5×10/L，Hb110g/L，BPC100×10/L，大便OB（+++），尿Rt蛋白质（+）、红细胞10～15个/HP、白细胞0～1个/HP。

其诊断最可能是（）

A.急性阑尾炎

B.胃溃疡

C.过敏性紫癜

D.肾结石

E.ITP

下列程序的执行结果是______。
s=0
i=1
Do While i＜=100
s=s+i
Loop
Print S

A．5050

B．505

C．死循环，无输出

D．无穷大的数

其诊断应考虑：

A．白驳风

B．白疕

C．白屑风

D．白色糠疹

E．汗斑