在同一时刻，身高1.6米的小强在阳光下的影长为0.8米，一棵大树的影长为4.8米

This is not a diet. It's a simple way to lose weight~ And you don' t even have to give up the food you love or join a gym. You just follow some habits that thin people have. Keep them, and you'll become thin.

( 1 ) Wake - up

When you wake up in the morning, sit up slowly without using your hands. With legs straight out, bend( 弯曲) forward until you feel sore in your back. It will burn about 10 calories (热量单位，卡路里).

(2) Start with soup

When you have a meal, order a clear soup, and have it before having the main food. In this way, you'll feel fuller, so you'll eat less when the main food comes.

(3) An apple (or more) a day

Apples are full of fiber（纤维) and water, so your stomach will want less. The study shows that people who eat at least three, apples a day lose weight.

(4) Stand up and walk around

Every time you use the mobile phone, stand up and walk around.  Heavy people sit on average(平均) two and a half hours more each day than thin people. This skill is very important as standing up and walking around will burn 50 or more calories.

Use these skills, and you will have a big weight loss.

小题1:What should we have first if we want to eat less main food?

A．Soup.

B．Ice cream.

C．Salad.

D．Cheese.小题2:Why does eating apples make one's stomach want less food?

A．Because apples are delicious.

B．Because apples are full of fiber and water.

C．Because apples are sour.

D．Because only apples are filled with calories.小题3:Which of the following may the author disagree?

A．Sitting up slowly without using your hands helps burn calories.

B．Eating apples every day is good for people's health.

C．You have to join a gym if you want to lose weight.

D．It' s good to walk around while talking on the mobile phone.小题4:What's the purpose of the passage?

A．To give some advice on how to lose weight.

B．To advise people to eat apples every day.

C．To tell people how to enjoy a better life.

D．To advise people to give up bad habits.小题5:In which part of a newspaper would you most probably read the passage?

A．Shopping.

B．Teaching.

C．Family.

D．Health.

某化学兴趣小组的同学采用了如图所示装置测定空气中氧气含量．

【实验步骤】：在由两个注射器组成的密闭系统中留有25mL空气，给装有细铜丝的玻璃管加热，同时缓慢推动两个注射器活塞，至玻璃管内的铜丝在较长时间内无进一步变化时停止加热，待冷却至室温，将气体全部推至一个注射器内，观察密闭系统内空气体积变化．

【实验分析】：（1）在实验加热过程中，交替缓慢推动两个注射器活塞的目的是______．

（2）写出该实验过程中玻璃管内的现象为______

写出该反应的文字表达式______．

（3）小强实验操作均正确，测得实验结果如下：

反应前注射器内气体总体积	反应后注射器内气体总体积
25mL	______ mL

【实验结论】：该实验得出的结论为______．

【实验反思】：小红同学实验误差较大，请你帮她分析造成实验误差的原因______（请写出其中一条）．

达尔文把通过激烈的生存斗争，        生存，         被淘汰的自然现象称为自然选择

某商贸企业为增值税一般纳税人，从事商品批发、零售和进口业务，2012年1月有关业务如下：
(1)委托某手表厂生产金表125块，提供纯金845克，账面成本180000元；共收取加工费不含税400000元(其中含表厂提供辅助材料15000元)，并取得对方开具的增值税专用发票。委托方无同类产品售价，该手表厂依法代扣代缴了消费税。该表收回后，商贸企业定价每块不含税30000元，本期售出28块。
(2)从国外进口一辆小轿车，作为企业销售接待用车，海关审定的关税完税价格18万元，从韩国购进一辆长度为15米的豪华商务车自用，离岸价为135万元，到我国海关起卸地前的运保费为9万元。
(3)从国内采购商品，取得的防伪税控系统开具的增值税专用发票上注明金额48万元、税额8.16万元；购货过程中发生运输费用4万元、装卸费1万元，取得运输部门开具的运费发票。
(4)购进作为固定资产管理的税控收款机5台，取得的增值税专用发票上注明金额6万元、税额1.02万元。从农村购进免税农产品，收购金额25万元，开具合法收购凭证；运输农产品支付运费1.2万元并取得运费发票。
(5)娱乐中心取得舞厅娱乐收入52万元，收购的农产品在舞厅供客人消费，取得收入26万元，销售啤酒等取得收入33万元。领用上月已抵扣了进项税额免税农产品成本为10万元，啤酒等小食品成本24万元。
(6)上月销售的一块某品牌手表因质量问题被顾客退回，该商贸公司退给顾客货款35万元，并开具红字普通发票；商贸公司将其退给代理商家，取得代理商家开具的红字专用发票注明金额26万元、税额4.42万元。
(7)取得上月啤酒的逾期包装物押金15万元，白酒的逾期包装物押金17万元。
(8)受托代销某品牌服装，本期取得代销不含税收入20万元，与委托方进行结算，取得增值税专用发票上注明税额1.5万元。(本期进口关税税率为30%，小汽车消费税税率是5%；手表的消费税税率是20%，当月取得的相关票据符合税法规定，并在当月通过认证和抵扣。)
根据上述资料，回答下列问题：

该商贸企业当月应纳营业税( )万元。

A．15.6

B．17

C．22.2

D．11.8

通常，零息债券以低于面值的价格发行和交易，债券持有人实际上是以买卖(到期赎回)价差的方式取得债券利息。 ( )