参考答案:E
子网197.182.15.19/28的子网掩码是255.255.255.240,其中:
240=(11110000)2,19=(00010011)
第33题: [填空题]Only by curing AIDS can people lengthen their life spans and improve the quality of life.
参考答案:N
答案解析:文章第一段提到,“there is no cure for AIDS”,艾滋病是无药可救的。题中这一说法明显与文章内容不符。
第34题: [简答题]汉元帝、成帝时补写过《史记》的是谁?
参考答案:
褚少孙.
第35题: [单项选择]Questions 11~13 are based on the following dialogue between two passengers.How often is the bus scheduled to pass their stop
A. Every ten minutes.
B. At twenty to one.
C. Every thirty minutes.
D. Once a day.
参考答案:C
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