CK-MB质量测定在决定限的不精密度应小于( )A．3.0%B．5.0%C．5.6

阅读理解。

     The summer vacation is over. It's true that time always flies fast. During the vacation, the weather was

hot and I could not do much work, but I lived happily.

    As the afternoon was hot, I did my work in the morning. I used to get up at 6:30 and take a walk in the

garden for half an hour. After breakfast, I began reading English and Chinese and did some exercises in maths.

Those took me three hours or more. I worked quite hard and made good progress (取得进步).

    I spent the afternoon outside. I went to swim and it was funny. I would not go home until it was about

five or six o'clock. Sometimes a friend of mine would come to see me and we would spend some hours

listening to music.

    In this way I spent my vacation happily. And I not only studied well but also became a good swimmer.

Now I am in good health and high spirits (精神).

1. What does the text mainly tell us? [ ]

A. How the writer spent his summer holidays.

B. What the weather was like in that summer.

C. When the writer got up in the morning.

D. Where the writer took a walk.

2. How long did it take the writer to do his homework? [ ]

A. Half an hour.

B. Three hours or more.

C. Only one hour.

D. Two hours and a half.

3. The writer spent most of the afternoon ______. [ ]

A. listening to music

B. visiting his friends

C. walking in the garden

D. swimming

4. The writer had very good summer holidays because he ______. [ ]

A. worked very hard and made good progress

B. learned to swim and did his work well

C. got up early and went home late

D. liked swimming better than studying

5. Which of the following is NOT true? [ ]

A. The writer made progress in his lessons.

B. The writer took a walk for half an hour before breakfast.

C. The writer began studying as soon as he got up.

D. The writer spent more time swimming than listening to music.

公安机关的任务从层次上分包括( )。

A．目前任务

B．局部任务

C．基本任务

D．具体任务

下列疾病属于非甲亢型甲状腺毒症病因的是（）。

A.碘致甲状腺功能亢进症

B.绒毛膜癌

C.多结节性毒性甲状腺肿

D.滤泡状甲状腺癌

E.慢性淋巴细胞性甲状腺炎

某县城化工厂为增值税一般纳税人，增值税税率17%，化妆品消费税税率30%，进口货物与设备的关税税率均为40%，本题中所涉及到的相关凭证在当月都通过了税务机关的认证。2007年10月发生以下经济业务： (1)外购原材料取得税控增值税专用发票，支付货款400万元，支付增值税 68万元，支付购货运输费用12万元，取得符合规定的货运发票，材料验收入库； (2)进口化妆品一批用于生产加工优质化妆品，关税的完税价格50万元；同日还进口大型生产设备一台，关税完税价格为30万元； (3)对外销售化妆品开具增值税专用发票，取得不含税销售额600万元，支付销货运输费用14万元，取得国有运输企业的货运发票， (4)将试制的优质化妆品发给本单位职工作福利，成本价40万元，成本利润率8%，无同类产品市场销售价格，生产优质化妆品过程中领用进口化妆品20万元作原料。 (5)因水灾损失上月购进的原材料成本10.93万元(其中含运输费用0.93万元)。 要求： (1)计算该化工厂当月进口环节应缴纳的增值税和消费税合计数； (2)计算该化工厂当月国内销售环节应缴纳的增值税； (3)计算该化工厂当月国内销售环节应缴纳的消费税； (4)计算该化工厂当月应缴纳的城市维护建设税和教育费附加合计数。

A．网络层

B．会话层

C．物理层

D．应用层