铁蛋白标记免疫电镜技术的特点有（） A.铁原子电子散射力大，电镜下呈明显胶粒状结构

期货公司执行非受托人的交易指令造成客户损失，（）。

A.客户有权不予认可

B.客户可以予以追认

C.非受托人承担赔偿责任，期货公司承担一般赔偿责任

D.期货公司承担赔偿责任，非受托人承担连带责任

下表是元素周期表的一部分，针对表中的①～⑩中元素，用元素符号或化学式填空

回答以下问题：

主族 周期	ⅠA	ⅡA	ⅢA	ⅣA	ⅤA	ⅥA	ⅦA	0
二					①		②
三	③	④	⑤	⑥			⑦	⑧
四	⑨						⑩

（1）在这些元素中，金属性最强的元素是    　　，最活泼的非金属元素是 　　；

（2）化学性质最不活泼的元素是    　  ，其原子的原子结构示意图为        　   ；

（3）元素的最高价氧化物对应的水化物中酸性最强的是            ，碱性最强的是　   ，呈两性的氢氧化物是                         ；

（4）在③～⑦元素中，原子半径最大的是       ；

（5）在⑦与⑩的单质中，化学性质较活泼的是                   ，可用什么化学反应说明该事实（写出反应的化学方程式）：                             。

“保险是晴天不借伞，雨天有伞撑的地方。”这说明商业保险[ ]

A、是规避风险的投资理财

B、以利润回报为主要目的

C、能保障基本生活需要

D、是筹集分散资金的有效形式

阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。

E

It is reported that today in China, 50% of people who write blogs do so as a personal diary and 83% use their blogs for sending messages to friends. It is also found that there is a strong East-West difference. In places like the US, blogs that offer information on news attract more readers but in China, blogs are more likely to be about sharing personal feelings.

It seems that bloggers can be divided into three types: IT bloggers, bloggers who record their ordinary feelings and media bloggers.

When blogging first started, the IT people had the technological advantage and they took the chance to put their thoughts on the web. Some of these IT people read their blogs.

The next wave of bloggers did not have any training as writes or in IT and wrote about normal daily life. Media bloggers, however, are trained writers, such as journalists and editors. When the many media bloggers showed up, the everyday blogs lost most of their readers. Media bloggers have the advantage of knowing how to communicate well through the written word.

However, the normal bloggers are still out there and increasing in number. It seems that blogging is the new way to express your feelings. People feel like the world is listening to, or rather reading, their problems, even if they are not .

小题1:What type of text is this?

A．A blog.

B．A diary.

C．A news report.

D．A school textbook.小题2:What is the passage’s subject?

A．How many people in China blog.

B．How did blogging get started.

C．Different types of blogs and bloggers.

D．What media bloggers do.小题3:How does the writers feel about the subject?

A．He/She feels strongly that blogging is a good thing.

B．He/She feels that there are lots of problems with blogging.

C．We can’t tell since he/she is not a blogger.

D．We can’t tell since he/she is just reporting facts.小题4:What is the writer’s tone?

A．Humorous and light-hearted.

B．Serious and factual.

C．Conversational.

D．Informal.

与实体企业相比，网络企业有哪些特点？