16世纪末,伽利略用实验和推理,推翻了已在欧洲流行了近两千年的亚里士多德关于力和运动

题型:单项选择题

问题:

16世纪末,伽利略用实验和推理,推翻了已在欧洲流行了近两千年的亚里士多德关于力和运动的理论,开启了物理学发展的新纪元。在以下说法中,与亚里士多德观点相反的是()

A.四匹马拉的车比两匹马拉的车跑得快;这说明,物体受的力越大,速度就越大;

B.一个运动的物体,如果不再受力了,它总会逐渐停下来;这说明,静止状态才是物体长时间不受力时的“自然状态”;

C.两物体从同一高度自由下落,较重的物体下落较快;

D.一个物体维持匀速直线运动,不需要受力。

考点:高中物理牛顿第一定律牛顿第一定律题库
题型:单项选择题

A friend of mine named Paul received an expensive car from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a street urchin(顽童) was walking around the shining car. “Is this your car, Paul?” he asked.

   Paul answered, “Yes, my brother gave it to me for Christmas.” The boy was surprised. “You mean your brother gave it to you and it didn’t cost you nothing ? Boy, I wish…”He hesitated.(犹豫)

  Of course Paul knew what he was going to wish for. He was going to wish he had a brother like that. But what the boy said surprised Paul greatly.

  “I wish,” the boy went on, “that I could be a brother like that.” Paul looked at the boy in surprise, then he said again, “Would you like to take a ride in my car?”

  “Oh yes, I’d love that.”

  After a short ride, the boy turned and with his eyes shining, said, “Paul, would you mind driving in front of my house?”

  Paul smiled a little. He thought he knew what the boy wanted. He wanted to show his neighbours that he could ride home in a big car. But Paul was wrong again. “Will you stop where those two steps are?” the boy asked.

  He ran up to the steps. Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled (残疾)brother. He sat him down on the step and

pointed to the car.

  “There she is, Buddy, just like I told you upstairs. His brother gave it to him for Christmas and it didn’t cost him a cent(美分). And some day I’m going to give you one just like it …then you can see for yourself all the nice things in the Christmas window that I’ve been trying to tell you about.”

  Paul got out and lifted the boy to the front seat of his car. The shining-eyed older brother climbed in beside him and the three of them began an unforgettable holiday ride.

根据短文内容,选择正确案。(10分)

小题1:The street urchin was very surprised when ________.

A. Paul received an expensive car    

B. Paul told him about the car

C. he saw the shining car

小题2: From the story we can see the urchin ______.

A. wished to give his brother a car

B. wanted Paul’s brother to give him a car

C. wished he could have a brother like Paul’s

小题3:The urchin asked Paul to stop his car in front of his house ____________

A. to show his neighbours the big car

B. to show he had a rich friend

C. to tell his brother about his wish

小题4:We can infer(推断) from the story that______.

A. Paul couldn’t understand the urchin

B. the urchin had a deep love for his brother

C. the urchin wished to have a rich brother

小题5:The best name of the story is ________

A. A Christmas Present    

B. A Street Urchin

C. A Brother Like That

题型:单项选择题

患者,既往有肾炎病史,因头晕,无尿3日入院,根据其肝右叶-右肾声像图,最可能的诊断为()

A.慢性肾衰

B.急性肾炎

C.肾结核

D.尿路结石

E.慢性肾炎

题型:单项选择题

目前能保持胃肠道正常解剖和生理功能,又能维持胃泌素正常分泌,还能消除胃酸分泌亢进,且手术安全性亦较大的治疗十二指肠溃疡手术的术式是()

A.Bancroft氏术式,胃次全切除术

B.Billroth氏Ⅰ式,胃次全切除术

C.迷走神经干切断加幽门成形术

D.Billroth氏Ⅱ式,胃次全切除术

E.高度选择性迷走神经切断术

题型:单项选择题

二母是指()

A.知母、贝母

B.知母、浙贝母

C.浙贝母、川贝母

D.川贝母、知母

E.土贝母、知母

题型:单项选择题

下图表示细胞呼吸作用的过程,其中1--3代表有关生理过程发生的场所,甲、乙代表有关物质,下列相关叙述正确的是()

A.甲、乙分别代表丙酮酸、[H]

B.1和2所含酶的种类相同

C.2和3分别都能产生大量ATP

D.1和3都具有双层生物膜

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