1982年全国第三次人口普查的材料表明，在我国每平方公里的平均人口为107人，比 1964年的74人/平方公里增加了33人。我国是世界上人口密度较高的国家，但人口分布很不平衡。大陆29个省、市、自治区中，沿海11个省、市、自治区人口密度为每平方公里302.6人，比1964年的232.7人，上升了37.8%；内地18个省、市、自治区人口密度为每平方公里71.4人，比1964年的47.3人，上升了50.9%，其中人口稀少的新疆、西藏、青海、甘肃、宁夏、内蒙古从每平方公里7.2人，增加到11.8人，上升63.9%。
根据第三次人口普查的资料，1982年我国的人口比1964年增加约（）。
A．27.6%
B．33.4%
C．44.6%
D．50.1%
参考答案：C
解析：
根据数据资料，1982年我国的第三次人口普查中，我国每平方公里的平均人口为107人，比 1964年的每平方公里74人增加了33人，所以我国1982年的人口比1964年的人口增加的为：33÷74≈44.6%。故选C。
阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 Life is like potato salad; when it’s shared it becomes a picnic. When my three children were young, my husband, Roy, and I were very 小题1:. “Can we go on a picnic, Mom?” my six-year-old daughter, Becky 小题2:. “Please.” I had said no so many times in the 小题3: months, and I decided the usual Saturday morning chores (日常工作) could wait. To her 小题4:, I agreed. I prepared a few sandwiches and 小题5:a cooler with ice and drinks and called Roy 小题6:. My eleven-year-old twin sons put the cooler and the picnic basket in the trunk and off we went to spend some 小题7: time together as a family. About the time I got the lunch 小题8:out on the table, Roy arrived on the 小题9:. That was one of the happiest meals we ever shared together. The meal was filled with 小题10:. We felt a closeness that had been hidden by work and school 小题11:for so many months. Roy and the boys 小题12:rocks into the lake. Becky fed the ducks and I sat quietly on the picnic table, 小题13: God for blessing me with such a wonderful family. That night as our 小题14: went to bed, I kissed their cheeks and realized what a wonderful life I had. As I walked out of the room it dawned on me that even the busiest 小题15: could become a picnic when it’s shared with the ones you 小题16:. Even though the kids have now grown up and 小题17:from home, I can still remember how I felt that day while sitting at the picnic table. Maybe today would be a good time to 小题18: potato salad, call all of my grown kids, feed some hungry 小题19:and skipped a few rocks into the lake. Since life is like potato salad, let’s make it a 小题20:.
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