Part1:英语:

问题描述:

Part1:英语:
一.按照要求完成句子:
1.我们的朋友遍天下(翻译)
______________________________________
2.晚会上我通常是喝茶而不是喝咖啡(翻译)
I ofen_______________________at the party.
3.虽然她不再年轻了,但是她有一颗年轻的心.(翻译)
Though____________,she has a young heart.
4.Lucy hasn't decided which trousers to buy.(改为复合句)
Lucy hasn't decided ____ ______ ____ _____buy.
Part2:
1.电阻R和电灯L串连接在电源电压恒为10V的电路中,电阻R=10欧姆.电路接通后,在100S内电阻上产生了10J的热量,已知电灯L的额定功率为10W,求该电灯的额定电压.
补充一道英语题:
1.(翻译)体育和音乐相比,我更喜欢音乐.

Part1:英语:
一.按照要求完成句子:
1.我们的朋友遍天下(翻译)
Our friends are all around the world
______________________________________
2.晚会上我通常是喝茶而不是喝咖啡(翻译)
I ofen__drink tea instead of coffee__at the party.
3.虽然她不再年轻了,但是她有一颗年轻的心.(翻译)
Though__she is not young any more__,she has a young heart.
4.Lucy hasn't decided which trousers to buy.(改为复合句)
Lucy hasn't decided __which trousers she will__buy.
Part2:物理
1.电阻R和电灯L串连接在电源电压恒为10V的电路中,电阻R=10欧姆.电路接通后,在100S内电阻上产生了10J的热量,已知电灯L的额定功率为10W,求该电灯的额定电压.
由Q=I^2*R*T
=> I=0.1A
由U=I*(R灯+R)
=> R灯=90欧姆
由P=U^2/R灯
=> U=30V
电灯的额定电压30V
问题补充:补充一道英语题:
1.(翻译)体育和音乐相比,我更喜欢音乐.
I prefer music to sports.