试题与答案

某10kV用户负荷为200kW,功率因数0.9,线路电阻2W,则线路损耗为()。A.

题型:单项选择题

题目:

某10kV用户负荷为200kW,功率因数0.9,线路电阻2W,则线路损耗为()。

A.0.8kW;

B.0.9kW;

C.1kW;

D.10kW。

答案:

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Ann was on her first package trip in Rosas, Spain.

At the hotel, she checked in, and then went to her room to change before dinner. She was just ready to go downstairs when she found that her Spanish money wasn’t in her handbag. She carefully looked in all her luggage, but she couldn’t find it. All she had was a small purse with ten English pound notes in it!

Ann found a place to change her English money. She had very few pesetas(西班牙货币单位), and she would be here for two weeks. On her way back to the hotel, Ann bought some cheese, some bread and some oranges. When she got back, she told the manager that her doctor had told her not to eat Spanish food; she’d just have breakfast each day, as she knew the price of hotels included breakfast.

For the rest of her holiday, Ann swam in the hotel swimming pool, or lay on the beach and got a sunbath. When the other tourists went to interesting places, she always said she wasn’t well. In fact, her holiday wasn’t bad, except that she was always hungry. After all, a piece of fruit for lunch, and bread and cheese for supper isn’t very much.

Late in the afternoon of their last day, a girl, Jane, asked her why she never ate with them in the hotel restaurant. Ann told her about her money problems. Jane looked at her for a minute, and then said, “But didn’t you know? The price of this holiday includes everything!”

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B.her doctor told her not to eat them

C.she wasn’t well

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B.Because she planned to eat them instead of lunch and supper.

C.Because she liked them more than dinners in the hotel restaurant.

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A.Angry.

B.Happy.

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