题目

某处工厂排出的烟道气中含氮氧化物（主要为NO、NO2）、粉尘和少量水蒸气。课外兴趣活动小组对该工厂排出的烟道气进行处理，并检测其氮氧化物含量，实验装置如图所示： （1） 装置A中放置无碱玻璃棉，其目的是除去。为保证检测的准确性，装置C中盛放的化学试剂可以是（填字母）。a．碱石灰b．浓硫酸 c．五水合硫酸铜（CuSO4·5H2O） （2） 装置D中主要发生：2NaOH＋2NO2=NaNO2＋NaNO3＋H2O；2NaOH＋NO＋NO2=2NaNO2＋H2O①若反应后尾气无残留，则Do your parents ever say, “act like a lady” or “be a gentleman” to you? But in the eyes of today’s teenagers, what should a lady or a gentleman be like? Let’s take a look. What is a gentleman? The girls have their ideas:   Huang Xiaoyu of Guizhou: A gentleman doesn’t always get angry. He wants others to be well and happy. He is always ready to help. There is a boy in my class and I think he is a gentleman. If I don’t do well in the English exam, he will say, “You will do better next time.” That makes me feel happy.   Chen Tingting of Shenzhen: A gentleman always says, “Ladies first” When students clean up the classroom, he does the heavy work. He lets girls go into rooms first. There are no gentlemen in my class. When there is something to eat, the boys in my class always get them before girls! What is a lady？ Boys tell us what they think a lady is:   Wu Yifan of Dalian: A lady is quiet and kind, but she’s not shy (害羞) and she can talk about her ideas in front of others. To me, Dong Jie, a film star, is a lady. She is pretty and kind. She does a lot for others.    Wang Lichao of Tianjin: A lady is not just beautiful but clever. She never says bad words. She is quiet and kind to others. I don’t think there is a lady in my class. Most of the girls are “wild beauties”, I think. 1.What does Huang Xiaoyu think a gentleman will do if she doesn’t do well in the English exam? A. He will say “You’ll do better next time” B. He will get angry C. He will say “You’re so careless.” D. He will laugh at her 2.Why does Wu Yifan think Dong Jie is a lady? A. Because she is quiet.                           B. Because she likes expressing (表现) herself C. Because she is pretty and kind. D. Because she is very shy. 3.Which of the following is TRUE according to this passage? A. Wang Lichao thinks pretty-looking is enough for a lady. B. Huang Xiaoyu thinks there is a gentleman in his class C. Chen Tingting thinks there is a gentleman in his class D. Wu Yufan thinks a lady can’t talk about her ideas in front of others. 4.What does the underlined words “wild beauties” mean in this passage? A. Beautiful and kind girls                              B. Pretty- looking but rude girls C. Gentle and shy girls                                 D. Clever girls