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问题 单项选择题

用来检查到一台主机的网络层是否连通命令是（）

A、PING

B、TRACERT

C、TELNET

D、IPCONFIG

答案

参考答案：A

阅读理解
阅读理解。
                              House of Porridge
     Welcome to Clark's Porridge House. We have different kinds of
porridge and We have meat porridge, vegetable porridge, and fruit
porridge is our special. It is only RMB 4 for one bowl. A bowl of meat
porridge is RMB 5. Vegetable porridge is RMB 3 for one bowl, but RMB
5 for two. We have thin pancakes, too. They are RMB 5 for ten. Come
and taste the delicious food here. If you are too busy to come, call us
and we can deliver the food to you in 20 minutes.
1. The owner of this porridge house is _____.
2. The cheapest is the _____ porridge.
3. If you eat a bowl of meat porridge and five thin pancakes, you will pay RMB_____.
4. The word "deliver" in the last sentence probably means "_____".
     (You can explain it either in Chinese or in English.)
5. If you order some food in this restaurant at 6 o'clock, you will probably get it before____.
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单项选择题

尿路感染最常见的致病菌是（）

A.厌氧菌

B.葡萄球菌

C.结核杆菌

D.肠道革兰阴性杆菌

E.粪链球菌
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