推车式泡沫灭火器的喷射距离为（）米.A.10~13 B.13~15 C.15~18

甲车从A地开往B地要10小时，乙车从B地开往A地要15小时，某日两车分别从两地同时相向开出，结果在距中点120千米处相遇．A、B两地相距多少千米？

What is your favorite color? Do you like yellow, orange or red? If you do, you must be an optimist (乐观者), a leader, an active person who enjoys life, people and excitement. Do you prefer grays (灰色) and blues? Then you are probably quiet, shy and you would rather follow than lead. If you love green, you are strong-minded and determined (意志坚定的). You wish to succeed and want other people to see you are successful. At least this is what psychologists (心理学家) tell us, and they should know, because they have been seriously studying the meaning of color preference (爱好), and the effect (影响) that colors have on human beings. They tell us that we don’t choose our favorite color as we grow up. If you happen to love brown, you did so as soon as you opened your eyes, or at least as soon as you could see clearly.

　　 A yellow room makes us feel more cheerful (开心的) and more comfortable (舒服的) than a dark green one, and a red dress rings warmth and cheer to the saddest winter day. On the other hand, black is depressing (压抑). Light and bright colors make people not only happier but more active. It is a fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or dark gray.

　　 Remember, then, that if you feel low, you can always brighten your day or your life with a new shirt or a few colorful things. Remember also that you will know your friends and your enemies better when you find out what colors they like and dislike. And don’t forget that anyone can guess a lot about your character when you choose a piece of handkerchief.

小题1:According to this passage, _________.

A．one can choose his color preference　　

B．one is born with his color preference

C．one’s color preference is changeable

D．one has to choose his favorite color as soon as he can see clearly小题2:We would pay attention to colors because _______.

A．colors do have effect on our moods(情绪)

B．colors may have effect on our work and study

C．light and bright colors make people happy

D．you can know your friends better by the colors they like or dislike小题3: The main idea of this passage is ________.

A．one’s color preference shows one’s character

B．you can brighten your life with wonderful colors

C．psychologists have been studying the meaning of color preference

D．one’s color preference has something to do with his character and colors have effects on human beings小题4: "I am feeling black" means ______.

A．I am feeling well 　　　　

B．I am very happy 　　

C．I am excited 　　

D．I am depressed

1，2，8，28，100，( )

A．196

B．248

C．324

D．356

汇编语言是一种______。

A．依赖于计算机的低级程序设计语言
B．计算机能直接执行的程序设计语言
C．独立于计算机的高级程序设计语言
D．面向问题的程序设计语言

某供热小区建筑面积为30×10⁴m²，室内计算温度t_n=18℃，供暖室外计算温度t_w'=-19℃。供暖期天数为152天，供暖期日平均温度t_P=-5.7℃，建筑物综合面积热指标q_F=65W/m²，则年耗热量为（）GJ。

A．1.64×10⁵

B．1.52×10⁵

C．1.78×10⁵

D．1.58×10⁵