就给定资料，自选某一角度，自拟标题，写一篇1000字左右的文章。要求中心明确，内容充

土地估价师接受继续教育时间5年累计不得少于（）学时。

A.50

B.200

C.150

D.100

阅读理解。

     Peter is four years old. He is bright and lovely. His father and mother love him very much. His mother

often feed (喂) food to him and carries him in her arms. Peter is too spoiled (被溺爱的).

     It's Sunday. His father wants to take him to the park. Little Peter asks his father to carry him. His

father says, "Peter. you have feet. You can walk yourself (你自己)." "But Mum always holds me in her

arms." says Peter unhappily.

     "Why do you have feet?"

     "When I am not happy, I kick (踢) my mother with them. "says Peter happily.

1. Peter is a _____ child.

A. friendly    

B. big    

C. lovely     

2. Peter's _____ spoils him very much. 

A. mother    

B. father    

C. parents     

3. Peter's father _____ on this Sunday.

A. is teaching him to walk

B. is taking him to the park

C. is carrying him to the park

4. Peter_____.

A. doesn't have feet

B. doesn't want to walk

C. can't walk

5. Peter kicks his mother when he is _____.

A. happy    

B. walking    

C. unhappy

患者，女性，32岁。因纳差3天、发热伴咳嗽2天、意识模糊、烦躁半天急诊入院。现妊娠36周。有慢性乙肝病史10年。体检：R28次/分，P88次/分，BP120/75mmHg。神志恍惚；巩膜中度黄染，有肝掌，颈部可见散在分布的蜘蛛痣；右下肺闻及湿啰音，心脏听诊无明显异常；腹软。血红蛋白90g/L，白细胞11×10⁹/L，N0.80；血糖7.0mmol/L，尿糖（+），尿镜检（-），血气分析正常。

患者的母亲即婴儿的外祖母为"慢性病毒性肝炎"，但分型不详。如果化验检查可能为如下结果（）。

A.抗-HAV-IgG阳性，抗-HAV-IgM阴性

B.抗-HEV-IgG阳性，抗-HEV-IgM阳性

C.HEV-IgG阳性，抗-HEV-IgM阴性

D.HBsAg阳性，HBeAg阳性

E.HBsAg阳性，抗-HBc-IgM阳性，抗-HBe阳性

F.抗-HCV阳性

G.抗-HDV阳性

用氢、氧、碳、钾、氯五种元素中的两种或两种以上的元素，按下列要求写出组成有关物质的化学式．

（1）一种无氧酸______；（2）一种碱______；

（3）一种酸式盐______；（4）一种具有还原性的气体______．

在电子商务中，对交易各方进行身份确认和签发数字凭证的服务机构称为______中心。