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问题 选择题

下列各项食品的制作过程中，运用了微生物发酵技术的是

①酸奶、米酒 ②酱油、豆腐  ③酱油、食醋  ④火腿肠、牛肉干

A．①②③

B．①③

C．②④

D．②③④

答案

答案：B

题目分析：①酸奶、米酒要用到乳酸菌和酵母菌，是发酵技术，①正确；

②豆腐是用豆类研磨而成，不是发酵技术，②错误；

③酱油、食醋要用到霉菌和醋酸杆菌，是发酵技术，③正确；

④火腿肠、牛肉干，是食品保存，不是发酵食品，④错误．

阅读理解

Mike likes climbing the mountains very much. One day he went climbing in the countryside. After three hours, he felt tired, then he started to sleep under a big tree. When he woke up, he saw a tiger not far from him. He jumped up and ran away quickly. When he got to a road, a car came and nearly(几乎)stopped, Mike opened the door of the car and jumped in. He got a terrible surprise when he was in the car, there was nobody in the driver’s place. He was so afraid that he closed his eyes.The car moved slowly and it stopped at last. He opened his eyes and saw a man open the door and he wanted to sit in driver’s place. Mike said to him, “Don’t get in. The car can drive by itself (它自己). ” But the man said, “ The car couldn’t move on the mountain and I pushed (推)it all the way down .”

小题1: Mike likes to climb the mountains.

小题2: Mike saw a tiger not far from him when he woke up.

小题3:Mike got a terrible surprise in the car because there was a tiger driving the car.

小题4: The car move slowly down by itself.

小题5: A man pushed the car all the way down from the mountain.
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单项选择题

ICMP消息的作用是什么（）

A.将互联网络置为控制模式以便能配置各种协议

B.通过IP数据报传送的用来发送错误和控制信息的消息

C.作为互联网协议模型的标准的二进制消息

D.在网络中用来监视连接协议的各种消息
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