单选题
发布日期:2021-06-03
以耻骨联合上缘,髂耻缘及骶岬上缘的连线为界
以耻骨联合下缘,髂耻缘及骶岬缘的连线为界
以耻骨联合上缘,髂耻下缘及骶岬缘的连线为界
以耻骨联合上缘,髂耻上缘及骶岬缘的连线为界
以耻骨联合后缘,髂耻缘及骶岬缘的连线为界
骨盆界限上部的为大骨盆,界限下部的为小骨盆。骨盆由左右髋骨和骶,尾骨以及其间的骨连结构成。人体直立吋,骨盆向前倾斜,两侧髂前上棘与两耻骨结节位下同一冠状面内,此时,尾骨尖与耻骨联合上缘位于同一水平面上。
骨盆被经过骶骨岬和界线的斜面分为大骨盆和小骨盆,也称为假骨盆和真骨盆。小骨盆前壁短,后壁长,一弯曲的管道,成年男女有明显的性别差异。
用线连接纸上的小球,线可以变成一个弧线但也需要一定的规律。
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Cloze 10 A young woman was driving through the 1 countryside. It was dark and raining. Suddenly she saw an old woman 2 the side of the road, holding her hand out as if she wanted 3 . "I can't leave her out in this weather," the woman said to herself, so she stopped the car and opened the door. "Do you want a lift?" she asked. The old woman 4 and climbed into the car. After a 5 she said to the old woman, "Have you been waiting for a long time? " The old woman shook her head. " 6 ," thought the young woman. She tried again. "Bad weather for the time of the year," she said. The old woman nodded. No matter 7 the young woman said the hitchhiker (搭便车的人) gave no answer 8 a nod of the head. Then the young woman 9 the hitchhiker's hands, which were large and hairy. Suddenly she 10 that the hitchhiker was actually a man! She stopped the car. "I can't see out of the rear screen," she said, "Would you mind 11 it for me? " The hitchhiker nodded and opened the door. 12 the hitchhiker was out of the car, the frightened young woman 13 When she got to the next village she 14 to a stop. She noticed that the hitchhiker had left his handbag 15 . She picked it up and opened it. She gave a gasp (喘气); inside the bag was a gum !
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