在一标准大气压下，完全燃烧10kg热值为1.26×107J/kg的干木材，如果没

A Lesson from the Elder

Grandfather was an elder Cherokee Native American who had a wrinkled, nut brown face and kind dark eyes. His grandson often came in the evening to sit on his knee and asked the many questions that children would ask.

One day the grandson came to his grandfather with a look of anger on his face and the following story. “Father and I went to the store today and because I helped him, he bought me a present---a jack-knife. I went outside to wait for father and to admire my new knife in the sunlight. Some town boys came by and saw me. They surrounded me and started saying bad things. They called me dirty and stupid and said that I should not have such a fine knife. The largest of these boys pushed me back and I fell over one of the other boys. I dropped my knife and one of them picked it up and they all ran away laughing. I hate them. I hate them all."

The elder Cherokee, with eyes that had seen too much, lifted his grandson's face so his eyes looked into the boy's face. Grandfather said, "Let me tell you a story. I, too, at times, have felt a great hate for those who have taken so much with no sorrow for what they do. But hate wears you down and does not hurt your enemy. It is like drinking poison and wishing your enemy would die. I have struggled with these feelings many times. It is as if two wolves are inside me.... It is a terrible fight.

One wolf is good and does no harm. He lives in harmony with all around him and does not take offense when no offense was intended. It will only fight when it is right to do so and in the right way. This wolf stands for joy, peace, love, hope, sharing, modesty, kindness, friendship, sympathy, generosity, truth, and faith.

The other wolf is full of anger. The least thing will set off his fiercest temper. He fights everyone, all the time, for no reason. He cannot think because his anger and hate are so much. It is helpless anger, for his anger will change nothing. This wolf represents fear, envy, greed, self-pity, guilt, lies, false pride and superiority.

Sometimes, it is hard to live with these two wolves inside me for both of them try to control my spirit. This same fight is going on inside you and inside every other person too.”

The boy looked into his grandfather's eyes and asked, "Which wolf will win?" The old Cherokee simply replied.... "The one you feed."

小题1:The boy was angry because __________.

A. he was not satisfied with his present

his back was badly injured in a fight

he had waited for his father for too long

his jack-knife had been taken away by some boys

小题2:How does the good wolf do things in the story?

A．He never fights against others.

B．He tries to get on well with others.

C．It is hard for him to live with other wolves.

D．Sometimes he had a terrible fight because some one hit him.小题3:We can learn from the third paragraph that _________.

A． “hate” is healthy

B．“hate” hurts oneself

C． “hate” is complicated

D． “hate” harms one’s enemies小题4:What did Grandfather mean by saying "The one you feed" in the last paragraph?

A．We should feed the two wolves equally.

B．Living in harmony with others is important.

C．Our feelings should be expressed at the right time.

D．The choices we make determine who we will become.

如图所示是“测定小灯泡的电功率”实验，所用小灯泡上标有“0.3A”字样，滑动变阻器上标有“20Ω 2A”字样，电源是由几节新干电池串联组成。

（1）请在甲图的○中填入小灯泡、电压表和电流表的符号，使之成为一个正确的电路。

（2）在电键试接触时电流表出现了如图乙所示的情况，同时发现小灯泡不亮，电压表无示数。造成电流表出现这一现象的原因是                  ，小灯泡不亮的故障是                                             。

（3）解决问题后再次接通电路，当滑片恰好位于中点时小灯泡正常发光，此时电压表示数如图丙所示，则小灯泡的额定电压是           伏，它的额定功率是           瓦，所用电源是由           节干电池组成。

80+PLUS当前都有哪些（）

A、80Plus铜牌

B、80Plus银牌

C、80Plus金牌

D、80Plus白金牌

E、80Plus钛金牌

某公司产品销售收入为1000万元，变动成本率为60%，财务杠杆系数为2，所得税税率为40%，普通股共发行500000股，每股净收益0.96元，该公司要求每股净利润增长50%，则销售应增长( )。

A．10%

B．15%

C．20%

D．30%

运矿汽车在雨雾天气时，最高时速为（）km/h