It's really a____ for us to talk to a friend far away on the phone.

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• 初中英语复习一、根据句意及首字母提示写出正确的单词：1、What's your new year's r________?2、China is a r______ country with a history of over 5,000 years.3、Lei feng is a good e____ for us.4、I could ride a bike at the a______ of hour.5、I'm going to write an a______ about living on the room.6、How do you c_____ with your friends far away.7、I used to learn English on r_______.8、Don't stay too close to the computer s_____.9、Our living q_______ has improved a lot.10、The talk show is a
• 选择恰当的单词填空 What a fine day!The sun is shining and everything looks bright.Can you feel hot_______you stand in the sun?The sun gives heat from far away.It is about one hundred and fifty milion kilometers away.The sun looks______because it is far away from us,but it's really very large.The earth moves around the sun.It_______the earth one year to go around the sun.And at the same time the earth itself is spinning around once every 24hours.The sun gives u
• It's really a____ for us to talk to a friend far away on the phone.
• 英语翻译
• 已知R2等于8欧,与R2串联后接到电压不变的电源上,测得R1的两端电压为4伏,通过R2的电流为0.4安,求R1的电阻