数字证书采用公钥体制，即利用一对互相匹配的密钥进行（） A.加密 B.加密、解密 C

There was once a young man called Paul in a village in the USA. Paul was very lazy because his father was a rich farmer and he didn’t have to work. Mr Smith, a neighbour of his, was a blacksmith (铁匠). He used to work in his shop all day. Paul spent hours and hours watching how the blacksmith worked every day. “Young man, why don’t you try your hand to make a shoe tack (铁钉), even it is only to pass the time?” said the blacksmith one day, “ Maybe it will be useful to you some day.” Finally, the lazy boy began to have a try. After practicing some times, he became skilled and could make very nice tacks.

Years later, Paul’s father died and he lost all the things because of a war (战争). He had to move to another country and live by himself. It happened that there were many shoemakers paying high prices to buy tacks for the shoes, because in that part of the country there was a great need of tacks for soldiers’ shoes. Paul went to talk with them. He told them that he would make the tacks if they could help him find a workshop in the village. The shoemakers agreed. Then Paul made a lot of money by making tacks. “How funny it is!” he said to himself, “Even by making shoe tacks, one can become rich.”

小题1:Why didn’t Paul have to work?

A. Because he couldn’t do anything.

B. Because he was too lazy.

C. Because his father was very rich.

D. B and C.

小题2:What’s the Chinese meaning of skilled?

A．熟练的.

B．适应的.

C．自信的.

D．巧妙的.小题3:What did Paul do after his father died because of the war?

A．He travelled to another country.

B．He moved to another country.

C．He learned to make shoes.

D．He started a workshop.小题4:How many kinds of people appeared in the story except Paul ?

A．Five.

B．Four.

C．Three.

D．Two.小题5:What can we learn form the story?

A．Making tacks is important.

B．Wars can make people hard-working.

C．Nothing is difficult to learn.

D．Everything you learned may be useful.

下列常用词语中书写完全正确的一项是

A．天理难容亭亭玉立挺而走险

B．天下靡然密而不宣祖传秘方

C．沉湎往事永保青春一拥而入

D．壅塞不通雍荣华贵因噎废食

甲木业制造有限责任公司（以下简称"甲公司"）是增值税一般纳税人，从事实木地板的生产、销售，同时从事木质工艺品、筷子等的生产经营。2014年4月，甲公司发生下列业务：（1）购进油漆、修理用零配件一批，取得的增值税专用发票上注明的价款为50万元、税额8.50万元；支付运费10万元（不含税），取得的货物运输业增值税专用发票上注明的税额1.10万元。（2）购入原木，取得增值税专用发票上注明的价款为200万元、税额26万元。（3）将库存的一部分橡木加工成A型实木地板进行销售，取得含税销售额81.9万元；另一部分制成工艺品进行销售，取得含税销售额52.65万元。（4）销售自产B型实木地板4.5万平方米，不含税销售额为每平方米280元，开具增值税专用发票；另外收取包装费11.7万元，开具普通发票。（5）将自产C型实木地板0.1万平方米用于本公司办公室装修，总成本为5.43万元，C型实木地板没有同类货物销售价格；将自产的D型实木地板0.2万平方米无偿提供给某房地产公司，用于装修该房地产公司的样板间供客户参观，D型实木地板的总成本为18万元，市场销售价为每平方米160元（不含增值税额）。已知：实木地板消费税税率和成本利润率均为5%；相关发票已经主管税务机关认证。要求：根据上述资料，分析回答下列问题（计算结果保留到小数点后两位）。

在计算甲公司当期应缴纳的增值税税额时，当期销项税额是（）万元。

A.212.60

B.227.42

C.230.48

D.241.91

细菌细胞分解有机质的速率最高的阶段是在（）

A、迟缓期

B、对数期

C、稳定期

D、衰亡期

较高运动强度的活动是______。

A．打网球

B．驾驶

C．游泳

D．慢跑

E．擦地