.要考察某公司生产的500克袋装奶粉的质量是否达标，现从800袋牛奶中抽取50袋进行检验.先将800袋牛奶按000,001,…799进行编号，如果从随机数表第8行第7列的数开始向右读取，则最先检测的5袋牛奶的编号依次是（ ）
A．55，67，19，98，10
B．556，719，810，507，175
C．785，567，199，507，175
D．556，719，050，717，512（下面摘取了随机数表第8行）
第8行：63 01 63 78 59 16 95 55 67 19 98 10 50 71 75 12 86 73 58 07 44 39 52 38 79
答案：C
第8行第7列第一个数为785在编号范围内，然后依次找三位数可得另外四个数为567,199,507,175.
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| The purpose of students 1 come to school is to study. But 2 needs right ways or we would waste the time or money. The followings are ways for studying. The 3 time for reading is morning. Because in the morning, the air is fresh and our mind is clear. For that reason, we can get good results. When we study, we must be patient. If we don't understand a text well, we must read it again. We should not read the next 4 we have learned the first one well. When we are studying, we must put our hearts 5 the book. We can't read absent-mindly (心不在焉的) or we could get 6 from the book while we are reading. We must always ask "why". If it is not 7 understood, write it down and ask our teachers or parents, brothers or our friends, in 8 possible way. We must know it completely and then our knowledge can 9 well. 10 there are many ways for studying, the above mentioned will be quite enough if we can keep them in heart. | ||||
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