在完整岩石试件的剪切面上施加一定法向应力时,获得的剪切面所能承受的最大剪应力称之为该

题型:单项选择题

问题:

在完整岩石试件的剪切面上施加一定法向应力时,获得的剪切面所能承受的最大剪应力称之为该岩石的()。

A、抗剪强度

B、抗切强度

C、摩擦强度

D、重剪强度

考点:地质学岩体的力学性质及分类岩体的力学性质及分类题库
题型:单项选择题

学校用880元买了23个足球,还余6元,每个足球______元.

题型:单项选择题

蜂窝织炎是指哪种病理改变()

A.发生于皮下组织及阑尾的炎症

B.一种弥漫性化脓性炎症

C.以淋巴细胞为主的炎症

D.由链球菌感染引起的局限性化脓性炎症

E.变性的炎症

题型:单项选择题

阅读理解。

     Once there was an 11-year-old boy who went fishing with his father in the middle of a New Hampshire

lake. On the day before bass (巴斯鱼) season opened, they were fishing early in the evening, catching other

fish with worms. Then the boy tied on a small silver lure (鱼饵) and put it into the lake. Suddenly he felt that

something very big pulling on the lure. His father watched with admiration as the boy skillfully brought the fish

beside the bank. Finally he lifted the tired fish from the water. It was the largest one he had ever seen, but it

was a bass.

     The boy and his father looked at the big fish. The father lit a match and looked at his watch. It was

10 p.m.-two hours before the season opened. He looked at the fish, then at the boy. "You'll have to put it back,

son," he said.

     "Dad!" cried the boy. "There will be other fish," said his father. "Not as big as this one," cried the boy. He

looked around the lake. No other fishermen or boats were in sight in the moonlight. He looked again at his

father.

     Even though no one had seen them, nor could anyone ever know what time he had caught the fish, the boy

could tell from his father's voice that the decision couldn't be changed. He threw the huge bass into the black

water. The big fish disappeared. The boy thought that he would never again see such a big fish.

     That was 34 years ago. Today the boy is a successful architect in New York City. He often takes his own

son and daughters to fish at the same place.

     And he was right. He has never again caught such a large fish as the one he got that night long ago. But he

does see that same fish... again and again... every time he has an ethical (道德的) decision to make. For, as his

father had taught him, ethics are simple matters of right and wrong. It is only the practice of ethics that is

difficult.

1. What happened when the big fish turned out to be a bass?

A. The boy and his father discussed what to do with the big fish.

B. The boy threw the bass back into the water willingly.

C. The father lit a match in order to check the time.

D. They worried other fishermen may discover what they had done.

2. From the text we know that the father _____. 

A. didn't love his son

B. always disagreed with his son

C. disliked the huge fish

D. was firm and stubborn decisions.

3. The successful architect went fishing with his children at the same place because ______.

A. they might catch a big fish there

B. he was taught a moral lesson there

C. it was a most popular fishing spot

D. their children enjoyed fishing there

4. What does the story imply?

A. It is easy to say something, but difficult to do.

B. An ethical decision is always easy to make.

C. It's hard to tell right from wrong sometimes.

D. Fishing can help one to make right

题型:单项选择题

在我国,第三极残疾预防的目标是()

A.预防交通意外致残

B.防止伤害后出现残疾

C.预防残疾后产生残障

D.预防合并症

题型:单项选择题

人 * * 瘤病毒微生物检验不正确的方法是()

A.HPV抗原检测

B.原位杂交

C.DNA印迹

D.血清学

E.PCR

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