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问题 多项选择题

PICC穿刺部位消毒方法为（）

A.用复合碘制剂以穿刺点为中心由内向外，螺旋式不间断式消毒

B.先用乙醇清洁脱脂，再用碘伏消毒

C.先用碘酒消毒，再用乙醇脱碘

D.氯己定上下摩擦消毒30秒

E.复合碘制剂擦拭消毒，让消毒剂自然风干

答案

参考答案：B, C, D

解答题
方程2-3（x+1）=0的解与关于x的方程
k+x
2
-3k-2=2x的解互为倒数，求k的值．
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单项选择题

A


A jobless man wanted very much to have the position of "office boy" at Microsoft. The HR manager interviewed him and then watched him cleaning the floor as a test. "You have passed the test," he said. "Give me your e-mail address and I’ll send you the form to fill in and the date when you may start. " The man replied, "But I don’t have a computer, neither an e-mail. " "I’m sorry," said the HR manager. "If you don’t have an e-mail, that means you are not living. And anyone who isn’t living cannot have the job. "
The man left with no hope at all. He didn’t know what to do with only $ 10 in his pocket. He thought and thought. Then he went to the supermarket and bought 10 kilos of tomatoes. He sold the tomatoes from door to door. In less than two hours, he had 20 dollars. He repeated the operation three times, and started to go early every day, and returned home late. Shortly, he bought a cart, then a truck, then he had his own fleet of delivery vehicles(运货车队). Five years later, the man was one of the biggest food retailers (零售商)in the US.
One day, one of his friends asked him for his e-mail. He said, "I haven’t got one. " His friend couldn’t believe his ears. "Can you imagine what you could have been if you had an e-mail" The man thought for a while and replied, "Yes, I’d be an office boy at Microsoft!\

The man ______ after he left Microsoft.

A．went to look for another job

B．asked for food from door to door

C．thought of an idea to make money

D．bought a computer and got an e-mail
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