MG-300采机在使用过程中，当电动机温度达（）℃时，给出温度显示信号。 A.155

为促进青少年健康成长，教育部组织创编了《第一套全国中小学校园集体舞》并于2007年9月1日在全国中小学全面推广。推广校园集体舞[ ]

①有利于男女同学在交往中发展友谊，促进身心健康成长

②有利于扩大异性交往的对象和范围，锻炼交往能力

③有利于培养学生健康的审美情趣和集体主义精神

④有利于构建和谐校园

A、①②③ 

B、②③④  

C、①③④ 

D、①②③④

--- Oh, must you? Stay a bit longer. ____.

--- Thanks anyway. I’ve got an early start tomorrow morning.

A．It’s been such fun having you.

B．Maybe you can have supper here.

C．We welcome you with open arms.

D．Let’s have another chat.

在隧道、沟、浅槽、竖井等封闭式电缆通道中，不得含有可能影响环境温度持续超过（）的供热管路。

A.5℃

B.10℃

C.15℃

D.20℃

An eight-year-old child heard her parents talking about her little brother. All she knew was that he was very sick and they had no money left. When she heard her daddy say to her (1) mother," (2) a miracle can save him now", the little girl went to her bedroom and took out her piggy bank. She (3) all the change out on the floor and counted it carefully. Then she (4) her way six blocks to the drugstore.

"And what do you want" asked the shopkeeper. "It’s (5) my little brother," the girl answered back. "He’s really, really sick and I want to buy a (6) . His name is Andrew and he has something (7) growing inside his head and my daddy says only a miracle can save him. " "We don’t (8) miracles here, child. I’m sorry." the chemist said, smiling (9) at the little girl.

In the shop was a (10) customer. He stooped down and asked the little girl, "What kind of miracle does your brother (11) " "I don’t know," she replied. "He’s really sick and mommy says he needs (12) . But my daddy can’t pay for it, so I have brought my (13) .""How much do you have" asked the man. "One dollar and eleven cents, (14) I can try and get some more," she answered quietly. "Well, what a coincidence," smiled the man. "A dollar and eleven cents—the (15) price of a miracle for little brothers. (16) me to where you live. I want to see your brother and (17) your parents. "

That well-dressed man was Dr Carlton Armp, a doctor. The operation was completed without any (18) and it wasn’t long before Andrew was (19) again. The little girl was happy. She knew exactly how much the miracle cost—one dollar and eleven cents—also the (20) of a little child.

4().

A．went

B．made

C．took

D．found

气环境的好坏程度的衡量不包括( )。

A．温度

B．湿度

C．植物覆盖率

D．气流速度