通过椎旁静脉系统发生转移的是（）。 A.甲状腺癌的颅骨转移 B.肺癌的脑转移 C.下

Four ways to have a good school-life

Your schooldays should be some of the best and happiest days of your life. How can you get the most from them, and make sure you do not waste this excellent chance to learn?

Be active at school 

Don't say things are difficult or boring. Be interested in school-life and your school subjects. Join lots of activities. ①( hands, quickly, your, class, in, up, put). Go around the school with a big smile. If you are not working, you are wasting your time at school. Teachers can not make everything enjoyable.

Keep fit

If you donot eat a good breakfast, you will be thinking about food in class. If you go to bed late and do not have enough sleep, you will be sleepy in class. ②Play enough sports every day in order to keep your body strong.

Face the problem

Do not say you will do things tomorrow. If you get behind the class, it is very difficult to get back in front. ③You can not finish the race if you rest all the time. Everyone fails some exams, loses some matches and has bad days. Don't let small problems seem very big and important. Don't forget to ask for help. You are young, no one thinks you must do everything quite well!

④   ▲   ▲   ▲   ▲  

Don't waste time lying in bed on Saturday or Sunday morning. Go and play a sport, get together with friends in the park to relax, learn the piano, or help someone with problems. If you don't want to go out, there are also a lot of things to do. You may read a book, practise English or help Mother with housework.

Follow our advice, and have a happy school-life!

1. Having a good breakfast and having enough sleep can keep you  ▲   ▲  .

2.请把文中①处括号内的词组成一个句子。▲   ▲  .

3.请把文中②处斜体部分改为含有“so that”的句子，使之与原句意思相同。▲   ▲  .

4.请把文中③处划线部分的句子译成汉语。▲   ▲ 。

5.请在④处给出一个小标题，使之能概括出下面一段内容的大意。▲   ▲  .

在我国，国有独资保险公司的组织形式是（）。

A．有限责任公司

B．无限责任公司

C．相互保险公司

D．自保公司

火灾危险区域划分21区规定为（）。

A.具有闪点高于环境温度的可燃液体，在数量和配置上能引起火灾危险的环境

B.具有悬浮状、堆积状的可燃粉尘或可燃纤维，虽不可能形成爆炸混合物，但在数量和配置上能引起火灾危险的环境

C.具有固体状可燃物质，在数量和配置上能引起火灾危险的环境

D.在易沉积可燃粉尘或可燃纤维的露天环境

食品生产经营应当符合食品安全标准，并符合下列哪些要求：（）

A．具有与生产经营的食品品种、数量相适应的食品原料处理和食品加工、包装、贮存等场所及生产经营设备或者设施

B．有食品安全专业技术人员、管理人员

C．有保证食品安全的规章制度

D．具有合理的设备布局和工艺流程

向DataOutputStream对象dos的当前位置处写入一个保存在变量f中的浮点数的语句是 【10】 。