问题 单项选择题

若(a,c)=1,(b,c)=1则(ab,c)=()。

A、1.0

B、a

C、b

D、c

答案

参考答案:A

阅读理解

阅读理解。

      The weather was fine last night. My friend named Steve and I decided to sleep in the open air. I found the sleeping bags under the bed in my room. I also packed some snacks. We could hardly wait for it to

get dark.We opened our sleeping bags and put them on the grass in front of my house.Steve and I played

some games,talked about something interesting and had a snack. In the end it got darkWe were just falling asleep when we heard something unusual.

     "Maybe it is just a small animal,” I said. Steve said nothing, but I could feel he was frightened. After I

looked around, I was sure it wasn’t an animal. It was my little brother, Tommy.

     "What are you doing here?" I asked. "You know, Tommy, you frightened us."

     "Sorry, Bill," he said. "It's hot in the room. I want to sleep outside with you."

     "Well, OK," I said. "Just come and lie down next to us."

     "Good night, Bill and Steve," said Tommy. "And thanks."

1. What did Steve and Bill decide to do last night?

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2. Where did Bill find the sleeping bags?   

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3. How did Steve feel when he heard something strange?

_____________________________________________                                        

4. What did Tommy come out of the house to do? 

_____________________________________________                                                     

5. How many persons slept in the open air at last in the story?                                

_____________________________________________

单项选择题