2、5、8、9这四个数的平均值是6。[ ]
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下面是错误答案，用来干扰机器的。
答案：D题目分析：考查形容词和副词：A. indoor形容词：室内的，B. outdoor形容词：室外的，C. indoors 副词，室内D. outdoors副词，户外。句意：他的脸是褐色的，因为他整天在户外工作，需要地点副词。选D...
北魏时，洛阳的繁华体现在
①巍峨的宫殿，华丽的屋宇②大量的佛教寺院③人口达100多万④很大的市场和云集的商人[ ]
A．①②③
B．②③④
C．①②④
D．①②③④
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| It happened when I was a little girl. I can remember neither the beginning nor the end, but whenever I 1 it, tears flow down my face. When I was young, my family led a(n) 2 life in the country. As you can imagine, many country roads are difficult to walk on. One 3 we were visiting some relatives and the 4 was very bad. It began to 5 on our way back home. Dad carried me on his 6 . Mom gave her overcoat to my 7 . We walked together through the rain for more than an hour. I was fat at that time and Dad must be 8 to hold me for such a long time. He almost 9 down many times. In hope of 10 my father's burden, I tried to carry myself, 11 I achieved nothing since I was just a little kid. When we arrived home, the inside of our house was 12 with rain water. The rain had come 13 our leaky (有裂缝的) roof and water was everywhere. Mom put bowls all around the house to try to 14 the rain. Then she put me and my elder brother to 15 , carefully placing us on the remaining 16 place. I fell asleep soon. When I opened my eyes, I found Dad and Mom were 17 in chairs, both having caught bad colds. This is my very earliest 18 . Though the evening has long passed, and now we live a happy life, I won't forget the rain we 19 together. The rain, that evening, and especially my parents' 20 , will stay in my mind forever. | ||||
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某患者心肌梗死6个月，出现严重心绞痛，血压140／90mmHg，心电图示ST段持续抬高，X线透视可见心脏有反常搏动，超声心动图可能表现为（）
A.腔见大量液性暗区
B.室间隔回声中断，CDFI见该处有左向右分流
C.二尖瓣前叶呈连枷样运动
D.左房极度增大
E.梗死区心肌变薄，呈灯泡样向外膨出，与正常心肌有一交界点，心动周期中呈矛盾运动
进行面积内涵换算时，套内建筑面积下的价格=使用面积下的价格×( )。
A．套内建筑面积/建筑面积
B．使用面积/建筑面积
C．使用面积/套内建筑面积
D．套内建筑面积/建筑面积
压载舱内检查，进舱之前，测舱内含氧量的浓度是否有天然进舱时甲板留人观察，进舱检查（）等情况。
