一定条件下，化学反应方向的判据为：△G=△H-T△S．已知反应A（s）=D（g）
题型：选择题
问题：
一定条件下，化学反应方向的判据为：△G=△H-T△S．已知反应A（s）=D（g）+E（g），△H-T△S=（-4499+11T）J/mol，（温度单位为K）．要防止A分解反应发生，温度必须（ ）
A．高于或等于409K
B．低于136K
C．高于136K而且低于409K
D．任意温度
题型：选择题
LONDON (Reuters Life!) ---- Forget about talking your children into considering life as a doctor or a teacher and start training them for the talent show.
A survey of British parents showed the aspirations (志向) of their children are greatly different from what they dreamed about when considering who they wanted to be when they grew up.
Although astronaut (宇航员) still remains fairly high on the list of careers (事业) kids dream about these days, others like doctor and teacher have been taken the place of by the desire (欲望) to win good name and money as a sporting hero, pop star or actor.
The parents of children aged 5 to 11 said the choice of lawyer had dropped by only one place on a top 10 list to sixth, while teacher had dropped to ninth from top in the last 25 or more years.
The survey for British TV channel “Watch” found a great difference between the genders (性别) of today’s young people when compared with their parents’ dreams 25 years or more ago.
Playing professional football, being an astronaut and joining the firefighting service topped the boys’ choices, while girls are more likely to be dreaming of taking to the stage as a pop star or actress or joining the medical profession.
When asked what they would like their children to do for a living, today’s parents still like the academic (学术的) professions (职业), with law and medicine scoring highly, while being a boss came third.
Parents also praised job happiness above wealth (财富) when it comes to their hopes for their children.
Nearly 70 percent of the parents surveyed thought that they failed to follow their dreams when it came to their career, with 37 percent thinking it was caused by a lack of aspiration and not having the necessary conditions.
1. From the passage we know that most parents still hope that in the future their children can take up ______.
A. jobs such as musicians, singers and dancers
B. jobs related to academic professions like lawyers and doctors
C. jobs in which they will not be endangered
D. jobs wh
ich will be well paid only
2. The first paragraph is to advise parents to ______.
A. change their children’s dreams B. correct their children’s dreams
C. follow their children’s dreams D. forget their children’s dreams
3. According to the survey for British TV channel “Watch”, which of the following is the boys’ best career choice?
A. A pop star B. An actor C. A doctor D. A firefighter
4. What can be learnt from the passage?
A. Parents’ hope for their children’s career did not change too much.
B. Parents pay much attention to the income of their children.
C. Less than half of the parents who were surveyed didn’t follow their dreams.
D. Most parents didn’t have the necessary conditions to realize their dreams.
5. What is the main idea of the passage?
A. Many reasons cause the change of children’s dreams.
B. Parents’ dreams are different from children’s.
C. Parents are changing their own dreams.
D. Children’s dreams are always changing.