题目

无机盐离子在细胞中起着非常重要的作用，影响植物细胞吸收离子的因素很多．某研究性学习小组研究营养液中O2含量变化对某植物吸收K+速率的影响（其他条件都是适宜的），实验结果如图，下列说法错误的是（ ） A．可分析得出该植物吸收K+是要消耗能量的 B．从图中可以看出，没有氧气该植物就不能吸收K+ C．AB段限制吸收K+速率的主要因素是O2浓度 D．BC段表示除了营养液中O2含量，还有其他因素影响K+的吸收速率    There was a very self-sufficient (自负的) blind man,who did a lot of traveling alone. He was making his first trip to Texas and happened to be seated next to a Texan on the flight. The Texan spent a lot of time telling him how everything is bigger and better in Texas. By the time the blind man had reached his destination (目的地) ，a large hotel,he was very excited about being in Texas.    The long trip had worn him out a little so he decided to stop at the bar for a small drink and a light snack before going up to his room to change his clothes. When the waitress set down his drink,it was in a huge cup. ‘‘Wow,I had heard everything in Texas is bigger,” he told her.    “That's right”，she answered. The blind man ate his snack and finished his drink. After drinking so much,it was only natural his next stop was going to the restroom. He asked the waitress where it was. She told him to turn left at the register (登 i己处) and it would be the second door on the right.   He reached the first door and continued down the hall. A few steps later he stumbled (缂脚) and missed the second door altogether and ended up going through the third door instead. Not knowing he had entered the swimming area he walked forward and fell into the swimming pool.    Remembering everything he had heard about things being bigger in Texas,as soon as he had his head above water he started shouting, “Don’t flush (7中 洗) ！   Don’t flush!”1. What was the first thing the blind man did in the hotel?   A. He talked with a Texan.   B. He had a small drink and a light snack.   C. He went up to his room to change his clothes.   D. He wanted to go to the restroom.2. What is the Chinese meaning of the underlined word “waitress” ？   A. 店主   B. 男服务员   C. 女服务员   D. 客人3. What did the blind man know about Texas before he got there?   A. He went there for the first time and knew nothing about it.   B. He knew that the Texan were very friendly.   C. He knew Texas very well from others.   D. He knew everything was bigger and better in Texas.4. Where did the blind man really go at last?   A. He went into the restroom.   B. He went into a bar.   C. He went into the swimming area.   D. He went up into his room.5. Where did the blind man think he went?   A. He thought he went into the restroom.   B. He thought he went into a bar.   C. He thought he went into the swimming area.   D. He thought he went up into his room.