证券托管是指投资者将持有的证券委托给证券公司保管，并由购买者代为处理有关证券权益事务

下图是周期表中短周期的一部分，A、C的原子序数之和等于B原子的原子序数。下列叙述正确的是

A．B的氧化物对应的水化物一定为强酸，且只有氧化性

B．三种元素对应的氢化物中C的氢化物稳定性最好

C．原子半径大小关系为：C＞A

D．C的单质常温下为无色无味的气体

Hundreds of secondary schools are using a controversial reward scheme which “bribes” (贿赂)pupils with iPods and DVD players to turn up in classes and do homework.

Almost one million schoolchildren have been issued with supermarket-style reward cards which allow them to collect good-behavior “points” and cash them in for prizes.

Schools taking part in the “Vivo Miles” scheme are spending several thousand pounds a year in an attempt to cut truancy (逃学) and promote achievements. The prizes are ultimately funded by the taxpayer, through school budgets. Nearly 500 secondary schools, one in six, have decided to take part in the scheme, which is intended to replace old-style rewards such as stickers and golden stars.

But the extent of rewards being offered in schools brought a warning that a generation of children is growing up expecting to be rewarded at every stage. Many youngsters are collecting points for ordinary achievements such as remembering to bring their PE kit and wearing the correct uniform.

Under the scheme, teachers award Vivo points—worth 1 penny each—according to the school’s policy. Schools typically spend￡4 to￡6 on prizes per pupil each year, although some commit considerably more. Most pupils accumulate between 400 and 600 Vivos a year. Vivo Miles insists it is “pretty rare” for a pupil to accumulate enough points to buy an iPod, which requires 3,100 Vivos.

But Chris McGovern, chairman of the Campaign for Real Education, said the scheme amounted to “bribery”. “It misleads children into thinking anything which requires effort has to have a special reward,” he said. “This ‘all must have prizes’ view is damaging to children in the long-term.” The scheme amounted to an “admission of failure” by schools. He said. “It shows a school has failed to convince children education is important.”

小题1:The “Vivo Miles” scheme is aimed at ______________.

A．increasing the income of the school

B．encouraging students to perform well at school

C．inviting more students to attend the school nearby

D．encouraging parents to donate to the school小题2:The underlined word “controversial” in the first paragraph can be replaced by __________.

A．arguable

B．practical

C．strange

D．mature小题3:Those who oppose the “Vivo Miles” scheme think ______________.

A．it helps control the problem of truancy

B．it teaches children the importance of saving

C．it will mislead children about efforts and rewards

D．it’s not easy to get more than 600 Vivos a year小题4:What’s the writer’s attitude towards the scheme?

A．Supportive.

B．Opposed.

C．Unconcerned.

D．Objective.

DreamweaverMX所提供的超链接类型有（）、（）、（）、（）、（）、（）六种。

所谓限定因素是指（）

A.妨碍目标得以实现的因素

B.对实现目标起决定性作用的因素

C.主要矛盾

D.计划许诺的内容

E.不肯定因素

下面描述中，符合结构化程序设计风格的是( )。

A．使用顺序、选择和重复(循环)三种基本控制结构表示程序的控制逻辑

B．模块只有一个入口，可以有多个出口

C．注重提高程序的执行效率

D．不使用goto语句