问题
单项选择题
智能组件内部过程层通信要求各IED采用的光纤通信端口，支持（）Mbit/s。
A.100Mbit/s或1000Mbit/s；
B.10Mbit/s或100Mbit/s；
C.10Mbit/s或1000Mbit/s
D.100Mbit/s或2000Mbit/s。
答案
参考答案：A
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智能组件内部过程层通信要求各IED采用的光纤通信端口，支持（）Mbit/s。
A.100Mbit/s或1000Mbit/s；
B.10Mbit/s或100Mbit/s；
C.10Mbit/s或1000Mbit/s
D.100Mbit/s或2000Mbit/s。
参考答案：A
The best way of learning a language is always using it. The best way of learning spoken English is _26__in English as much as possible. Sometimes you‘ll get your words __27__up and people will not __28_ you. Sometimes people will _29__things too quickly and you can’t understand them. But __30__ you keep your sense of humor， you can always have a good laugh at the mistakes you __31__. Don’t be unhappy if people seem to be laughing __32__ your mistakes. It’s __33__ for people to laugh at your mistakes than to be angry with you， _34_ they don’t understand what you are saying. The most important thing for learning English is： “Don’t be __35_ of making mistakes because everyone makes mistakes.”
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