S是正△ABC所在平面外一点,且SA=SB=SC=AB,如果E、F分别为SC、A

瞬时液相烧结

解释下列句中加粗词语。

1．父亲老实厚道低眉顺眼累了一辈子，没人说过他有地位，父亲也从没觉得自己有地位。

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2．他忽然醒悟，台阶是水泥抹的面，不经磕。

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3．农村里有这么个风俗，大庭广众之下，夫妇俩从不合坐一条板凳。

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4．（他）那极短的发，似刚收割过的庄稼茬，高低不齐，灰白而失去了生机。

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定差减压阀是使进、出口之间的压力差等于或近似于不变的减压阀。

One day, when I was in college, a dishonest-looking character approached me in the student union with a leather jacket he wanted to sell. It was a beauty: buttery smooth cowskin, with artfully sewed lines and long leather fringes (穗).

I can’t remember what the price was, but it was apparently too little for such a jacket. Even as I paid the money that day, I knew something wasn’t right. Surely, a couple of days later, the jacket’s real owner, a student about my age came to me as I was on my way to class.

“That’s my jacket,” he said, “and I want it back.”

“No way,” I answered. “I paid for it, and I have no idea if it’s yours. It’s mine.”

He didn’t challenge me, and I left, but the uneasiness(不安) I had about my new possession now had a visible face. A few days later, riding my bike across campus, I saw the real owner standing on the sidewalk. I rode over, took the jacket off, handed it to him said I was sorry, and rode off without another word. More than the weight of the jacket had been lifted from my shoulders.

We’re all human, which means that sometimes we do things we shouldn’t do or say things we shouldn’t say. Sometimes we realize too late that our actions have been hurtful to somebody else. When these hard times occur, the best response --- the only response, really --- is, “I’m sorry.”

Admitting a wrongdoing, as soon as possible and frankly, helps the other person begin to heal. But just as important, it cleans up our own soul and sets us free.

That is a small price to pay for a clear conscience.

小题1:The author bought the leather jacket from the man in the student union because ______   .

A．it was charged at a reasonable price

B．it was a very attractive jacket

C．he was in great need of clothing

D．he was happy to find such a bargain小题2:The phrase “had a visible face” in the passage probably implies（暗含） “______  ”.

A．started to bother me badly

B．might be clearly expressed

C．began to give me away openly

D．could be instantly melting away小题3:Giving the leather jacket back to the real owner, the author ______    .

A．offered his forgiveness

B．felt very much relieved

C．rode away unwillingly

D．realized his wrongdoing小题4:What is the author’s purpose of this writing?

A．To encourage the readers to admit errors honestly.

B．To show the readers the reality of his college life.

C．To give the readers a lesson on how to say sorry to others.

D．To tell the readers a story that once happened at college.

My English-Chinese dictionary has disappeared. Who _____ have taken it? [ ]

A. should

B. must

C. could

D. would