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问题 单项选择题

泌尿系结石的饮食与药物治疗错误的一项是

A．磷酸盐结石少食蛋黄和牛奶
B．尿酸盐结石少食动物内脏及豆类
C．磷酸盐结石不宜口服氯化胺
D．尿酸盐结石需服用碳酸氢钠
E．草酸盐结石宜少吃马铃薯、菠菜、甜菜等

答案

参考答案：C

单项选择题

危险物品的生产、经营、储存单位，矿山、建筑施工单位主要负责人安全资格培训时间不得少于 ( )学时，每年再培训时间不得少于( )学时。

A．24，8

B．36，24

C．48，16

D．48，24
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单项选择题

Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents’ home in Missouri for Christmas. I stopped at a gas station(加油站) about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing inline at the cash register, I said hello to an older couple who were also paying for gas.
I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s home. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card.
I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.
Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day, and the battery was dead. Then I noticed that the Friendly Ford dealership—a shop selling cars was right next door. I walked over and found two salesmen in the showroom.
"Just how friendly is Friendly Ford" I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you, and it meant a lot, he said.
"Thank you" are two powerful words. They’re easy to say and mean so much.

What happened when the author found smoke coming out of his car

A．He had it pulled back to the gas station.
B．The couple sent him a business card.
C．The couple offered to help him.
D．He called his friend for help.
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