变压器的额定容量表示变压器允许传递的最大功率,一般用()表示,单位是VA(伏安)。A

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问题:

变压器的额定容量表示变压器允许传递的最大功率,一般用()表示,单位是VA(伏安)。

A.有功功率

B.无功功率

C.视在功率

D.无法确定

考点:车辆电工考试车辆电工技师车辆电工技师题库
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All over the world people enjoy sports. Sports help to keep people healthy and happy, and to live longer.

  51   They buy tickets or turn on their TVs to watch the games. Often they get very excited when their player or team wins.

 52  Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or Italy!  53   Think how many lovers to skate or ski in winter in Japan, Norway or Canada.

Some sports or game go back thousands of years, like running or jumping. Chinese wushu, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet.  54  Water-skiing is one of the newest in the family of sports.

People from different countries may not be able to understand each other, but after a game together they often become good friends.  55    One learns to fight(奋斗) hard and fight fair(公平的), to win without pride and to lose with grace. (胜不骄败不馁)

A.And think of people in cold countries.

B.Sports help to train a person’s character(性格).

C.Not a few people participate in different sports competitions themselves.

D.Many people like to watch others play games.E. People aren’t inventing new sports or games.

F. Some sports are so interesting that people everywhere take part in them.

G. People are inventing(发明) new sports or games all the time.

51 ______   52 ______   53 ______  54______  55______

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关于食管中段异物,错误的是()。

A.是指嵌顿于食管第二狭窄的异物

B.常表现为颈根部疼痛

C.常表现为胸骨后疼痛

D.食管镜检时可见搏动

E.未及时取出可引起致命大出血

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面粉按照其蛋白质的含量分为高筋粉、低筋粉和中筋粉。这三种面粉中,高筋粉要求蛋白质在(),中筋粉一般在(),而低筋粉()。面包生产中要求使用(),糕点生产中一般要求使用()。

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离子注入后退火的作用是什么?

题型:单项选择题

发生下列哪种情况()中断全厂安全记录。

A.1人重伤

B.2人轻伤

C.责任性设备一类障碍

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