题目

阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。 I was born legally blind. Of all the stories of my earlychildhood, the one about a1is my mother's favorite. I was only two when the2occurred. We had justarrived home from a trip. Mom lifted me out of the car and3to speak to the driver. Itook advantage of my brief4to dash across the lawn(草坪) — and hit a large mapletree! I was running so fast that I bounced off the trunk and landed on mybackside. Mom5me to start crying, but Ijust sat there for a minute. Then I6myself up and kept某兴趣小组利用下图装置对二氧化碳的性质进行探究，下列说法错误的是A. B处现象说明二氧化碳能使紫色石蕊变红B. C处溶液变浑浊，是因为生成了不溶于水的碳酸钙C. D处的实验现象是下层蜡烛先熄灭，上层蜡烛后熄灭D. D处现象说明二氧化碳不可燃，不助燃，密度比空气大