对于铝、镁等合金铸件，铸件的冷却主要是依靠铸型本身（），所以厚壁金属型比薄壁金属型的

If a snake bites you, take a photo with your mobile phone! It save your life. This is the surprising advice of a British cook. One day Henry Jackson was working in a restaurant kitchen. He picked up a dish from a table, and suddenly a snake appeared and bit him on the hand. A few days earlier, the snake came to the restaurant from Asia in a box of bananas. It climbed out of the box and hid under the dish. “ I tried to pick it up and it bit me. I threw it away, but it landed in the fridge. So I closed the door.” Jackson said. Anyway, Jackson was cool and he took a photo of the snake with his mobile phone. Soon his hand began to ache and he went to hospital. Then his chest began to hurt. Doctors couldn't say what was wrong because they didn't know what kind of snake it was.

Then Jackson remembered his mobile phone photo. The doctors sent it to London Zoo. When they knew the kind of snake, they could give Jackson the right medicine, and he left hospital the next day. “ So my advice is this: If a snake bits you, pick up your phone. Take its photo first and then call the hospital. Show the photo to the doctors,” suggests Mr. Jackson. “ Oh, and if the snake doesn't smile for its photo, don't worry!”

小题1: When the snake bit Mr. Jackson, it was        .

A．hiding in a box of bananas

B．climbing out of a box of bananas

C．lying under a dish

D．climbing into the fridge小题2:Mr. Jackson threw the snake away probably because        .

A．he was surprised

B．he wanted to get a better photo

C．his chest began to hurt

D．the fridge door was open小题3:Mr. Jackson closed the fridge door so that        .

A．he could take a photo

B．the snake couldn't go back to the zoo

C．the snake became cool

D．he was safe from the snake小题4:The doctors gave Mr. Jackson the right medicine when        .

A．London Zoo told them what kind of snake it was

B．Mr. Jackson sent the photo to the hospital

C．he left hospital the next day

D．the snake bit him小题5:The text tells us if we are in danger and have a phone with us, it will help us to do       thing.

A．one

B．two

C．three

D．four

进行环境影响评价时需要遵循的原则包括（）。

A.符合国家资源综合利用的政策

B.符合污染物达标排放和区域环境质量的要求

C.符合流域、区域功能区划、生态保护规划和城市发展总体规划，布局合理

D.符合国家的产业政策、环保政策和法规

高压电击，特别是雷击，最常发生致命性的是（）

A.前臂腔隙综合征

B.神志丧失、心跳、呼吸停止

C.皮肤肌肉烧伤

D.鼓膜破裂

E.急性肾衰

雨花茶是（）名优绿茶的代表。

A、片形

B、扁平形

C、针形

D、卷曲形

在Windows中下面说法正确的是（）。

A.每台计算机可以有多个默认打印机

B.如果一台计算机安装了两台打印机，这两台打印机都可以不是默认打印机

C.每台计算机如果已经安装了打印机，则必有一个也仅仅有一个默认打印机

D.默认打印机是系统自动产生的，用户不用更改