题目

在体积均为1.0L的恒容密闭容器中加入足量的相同的碳粉，再分别加入0.1mol CO2和0.2mol CO2 ， 在不同温度下反应CO2（g）+C（s）⇌2CO（g）达到平衡，平衡时CO2的物质的量浓度c（CO2）随温度的变化如图所示（图中Ⅰ、Ⅱ、Ⅲ点均处于曲线上）．下列说法正确的是（） A . 化学平衡常数K：K（状态Ⅰ）＜K（状态Ⅱ）＜K（状态Ⅲ） B . CO2的平衡转化率α：α（状态Ⅰ）＜α（状态Ⅱ）=α（状态Ⅲ） C . 体系中c（CO）：c （CO，状态Ⅱ）＜2c （CO，状态Ⅲ） D . 逆A traveler was passing through a desert on a hot day. He was tired, feeling thirsty and hungry. At least, he needed a shady spot to rest for a while. A big leafy tree came into view at some distance away. He felt glad and said to himself, “Had I water to drink, now.” Yes, he found a glass full of cold water on the ground right in front of him. Then, he wished, “Had I something to eat right here.” Immediately, a variety of dishes appeared before him. He was under the shade of Kalpa-Vriksha — a magical tree. Whoever was under it would have whatever he wished for! The traveler enjoyed the delicious food. He felt drowsy. He wished for a nice bed. It was granted. He stretched himself comfortably on the soft mattress. He hoped that someone would massage (按摩) his feet. Yes, a young lady appeared. She started massaging his feet and legs. He now started thinking differently. “How can things happen like this? Is it some kind of a trick played by a magical demon (魔鬼)?” he doubted. Oh, a true demon appeared in place of the nice lady! Within no time the demon started leaping at him, with his mouth wide open. The frightened traveler took to his heels and ran away. What will happen if you sit under the magical tree? A. You will get what you want. B. You will marry a young girl. C. You will meet a demon. D. You will get rid of all your trouble. The underlined word “drowsy” in the second paragraph means “_______”. A. hungry     B. sleepy      C. thirsty        D. cold How many wishes did the traveler make? A. 3        B. 4     C. 5    D. 6.