加工前原料重量是的比（）A、净料重量与出材率 B、损耗重量与出材率 C、净料重量与损

生物分类的最基本单位是（　　）

A．属

B．科

C．种

D．目

病历摘要：杨女士，女，29岁，因诉右下腹剧痛伴少量 * * 流血半天入院。患者已婚，带环避孕，既往月经正常，末次月经96年6月1日，今晨（8月3日9时）突然出现右下腹剧痛及少量 * * 流血，伴头晕、恶心，肛门坠胀感。体查：血压10.6/6.6kPa，面色苍白，痛苦面容，心率110次/分，腹软，压痛（+），反跳痛（-），移动性浊音（-），妇检宫颈光滑口闭，举痛（+），后穹隆触痛，饱胀感（-），子宫中位胀软，右附件增厚未触及明显包块，压痛（+），左附件正常。血常规RBC3.49×10¹²/L，Hb100g/L，WBC12.2×10¹²/L，N70％。

鉴别诊断输卵管妊娠流产与黄体破裂，下列哪个项目比较可靠？（）

A.有无停经史

B.后穹窿穿刺

C.B型超声检查

D.血妊娠试验（β-HCG检查）

E.有无 * * 流血

B

When I was looking at my railway timetable, I read with satisfaction that there was an express train (快车) to Westhaven. It went to the station in my hometown and the journey lasted only an hour and 17 minutes. When I got on the train, I couldn’t help noticing that a lot of villagers got on as well. At that time I was not surprised at all. I thought that there might be many people besides myself who wished to take the express train to save time. Neither was I surprised when the train stopped at Wildly, a small station a few miles along the line. Even an express train can be delayed sometimes. But when the train stopped station after station, I began to wonder. It suddenly struck me that this express was not running down the line at 90 miles an hour, but no more than 30. One hour and 17 minutes passed and we had not covered half the distance. I asked a passenger if this was Westhaven Express, but he said he had not even heard of it. Two hours later, I was talking angrily to the station master at Westhaven. When he said there was not such an express train, I asked for his copy of the timetable. There was a sign of victory in my voice when I told him that it was there in black and white. Looking at the timetable, he told me to look careful. At the bottom of the page it said, “This service has been stopped.”

61. The passage mainly tells us about ______.

A. the writer’s unhappy journey on a train

B. a mistake in the railway timetable

C. a careless mistake made by the writer

D. the reason why the train was delayed

62. An express train should travel at the speed of ______.

A. more than 40 miles an hour

B. no more than 40 miles an hour

C. 90 miles an hour

D. less than 90 miles an hour

63. Which of the following is true according to the story?

A. The writer got a wrong timetable.

B. The writer had wanted to take an express train.

C. The villagers got on an express train to save time.

D. None of the passengers had heard of Westhaven Express

64. The writer didn’t realize he was on the wrong train until ______.

A. he saw a lot of villagers getting on the train

B. the train stopped at a small station

C. he found the train was delayed

D. an hour passed after he got on the train

65. What was the writer’s mistake?

A. He didn’t notice the words at the bottom of the timetable.

B. He didn’t know that Westhaven Express was not in the timetable at all.

C. He got on a train which didn’t go to Westhaven.

D. The express train changed it speed.

脱囊的临床特征下列哪一项不正确？（）

A.阴囊红肿

B.迅速坏死

C.睾丸暴露

D.发热恶寒

E.好发于中年男性

超过12小时的手部切割伤，最适当的处理是（）

A.清创、闭合伤口，吻合神经及肌腱

B.清创、闭合伤口，神经、肌腱待二期修复

C.彻底清创，即使伤口不能闭合，亦修复神经、肌腱

D.应争取闭合伤口，同时修复肌腱

E.闭合伤口，同时修复神经