酬众的价值主要表现为（）。 A.消费者价值 B.消费者互动 C.订单的集成 D.消费

A waitress works _____________.[ ]

A. in the shop

B. in the market 

C. in the restaurant

短文改错。

     下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

     增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。

     删除：把多余的词用斜线（\）划掉。

     修改：在错的词下划一横线，并在该词下面写上修改后的词。

     注意：1. 每处错误及其修改均仅限一词。

                 2. 只允许修改10处，多者（从第11除起）不计分。

     Thomas Edison, a famous American scientist and inventor, had more than 1000 inventions. As we

know, one of his inventions is bulb and they changed the world very greatly that the lights in America

were off for three minutes in the memory of him at his death.

     I admire him because his great contribution to the world. Though not blessed with much gift and even

thinking to be foolish in teachers' eyes, but he never discouraged himself by difficulties in life, which

instead motivated him to pursue his dream. Beside, in his spare time, he was always eager to know what

things worked, which made him full of wisdom and paved the way for his final success.

     Just as he says, genius is one percent inspiration and ninety-nine percent perspiration. From him, I

realize the secret to success is not when and where you were born, but what you are doing and how

you do it in your lives.

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纳博特囊肿见于()

A．卵巢畸胎瘤

B．子宫内膜异位症

C．慢性子宫颈炎

D．卵巢囊肿

E．绒癌卵巢转移

反渗透装置的主要性能有（）。

A、透水量；

B、透盐量；

C、水的回收率；

D、除盐率。

整流模块保护关机（如：输入过压时，自动关机）是通过（）实现的

A.关交流电

B.关PWM脉冲

C.关直流输出

D.拉低基准到0V