下列电学基础知识说法正确的是

题干

下列电学基础知识说法正确的是（）

A：道路两旁的路灯同时熄灭是因为它们串联

B：导线用铜制造是利用了铜具有较好的导热性

C：电源的作用就是给电路两端提供电压

D：19世纪20年代德国物理学家安培对电流与电压、电阻之间的关系进行了大量实验。

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C

Lincheng is a new developing city. There are lots of popular restaurants. Although they are not famous, they are good places to have meals.

Qingteng Yuan

Main dishes: Many different fish, meat and chicken dishes

Specials: Vegetable salad (¥20),

Roast beef (¥48 on weekdays, ¥38 on weekends)

Fruits (Free): Watermelon, apples, bananas, oranges

Tel: 876-2198

Opening Hours: 11:00 a.m.—1:00 a.m.

Ruihai Drinking

Building

Mainly all kinds of meat, pork, beef and mutton.

Specials: Roast pork (only offered on Saturday, ¥50 each)

Drinks are not allowed to take except VIP.

Tel: 897-6543

Opening Hours: 11:00 a.m.—1:30 a.m. (VIP 24 hours)

Rujia Restaurant

Mainly dumplings and noodles.

Specials: Beef and cabbage dumplings (¥5 each on weekdays, ¥4.5 on weekends)

Dumplings can be taken away.

Tel: 432-0945

Opening Hours: 11:30 a.m.—10:00 p.m.

Linglong Sea Food

Mainly sea food.

Specials: Roast fish (¥25 each)

Tel: 287-9056

Opening Hours: 11:00 a.m.—12:00 p.m. (From Monday to Thursday)

11:00 a.m.—2:00 a.m. (Friday, Saturday, Sunday)