哪些行为属于违章用电？

有一种pH为12的NaOH溶液100 mL，要使它的pH降到11，

(1)如果加入蒸馏水，应加              mL；(提示：溶液总体积具有加和性。下同)

(2)如果加入pH=lO的NaOH溶液，应加_______   mL；

(3)如果加入O．Ol mol·L^-1的盐酸，应加_______ mL。

阅读下列文章，完成问题。

　　我喜欢秋天。

　　当空气中夏的浮躁气息渐渐弥散，街上女人色彩艳丽的衣服变成驼黄色系时――我静静地等待着，等待着秋的来临。秋和春不一样，她几乎是一下子就翩然而至的，让人们猝不及防地在棉麻的夏衣上罩上一层秋衫。

　　秋的到来，或许就是一阵不期而来的凉风，甚至是地上一片微微泛黄的树叶。

　　秋天的天空是可以直接从颜料管中撤出的钴蓝，抹在画布上，再添上几笔错落有致的芦苇，倒影的河水，就是自然的风景画。晚秋是最适合画山水的时候，当华美的叶子差不多落尽，露出生命清晰的脉络，于是用枯笔稍稍勾勒出她的生长方向，秋意也随之在笔尖流淌。

　　秋天还有一样很入画的东西――菊花。她开得蓬勃而大气，涌动着无穷的生命力，充满丰盈之美。野菊花更别有一番风致，雪白的花瓣托着金黄色的花芯，一簇簇迎风飘摇着。山里人家会收好野菊花，焙干制成菊花茶。于是就有了玻璃杯里上下漂浮的菊花茶，泡开的花瓣近乎透明，花香缓缓升腾起，萦绕着，布满了整个小屋。这时抿一小口，再吐一口气，你会觉得边呼吸都染着菊花香了。

　　秋天的声音是需要谛听的，它是一首温情的和弦。乡间的音乐在旷远的田野上萦绕，蛙儿的鸣叫声此起彼伏，谷粒一颗颗饱满地坠落在土地上，泛起金色的涟漪。秋风起来了，沙沙地在吟唱，温柔地拂过。等到了秋雨敲打芭蕉的黄昏，点一盏橘黄的小灯，再摊上一叠素纸，与自己的灵魂对话，是秋日里难寻的浪漫。

　　秋天里还可以剥蟹煮酒呢。十月的螃蟹最鲜美。煮上一锅刚从河里捉来的蟹，在细细斩好姜末，制成姜米醋，家人就围坐在一起，蘸醋吃蟹，日子过得舒缓而惬意。灵巧的主妇还会做蟹黄汤包，蟹粉狮子头，蟹粉豆腐羹，让走出水乡的女儿都比别处的润泽许多。

　　喜欢秋天的理由还有许多。在云淡风清的日子里，我可以松松垮垮套上一件粗线毛衣，感受着织物摩擦传给身体的温暖气息。再背上微微泛白的牛仔挎包，行走在秋天的白桦林。阳光像钢琴明亮的音色洒在林间裸露的大地上，用它中性的调子铺上和谐而又高贵的色泽。收获过的秋天宛如刚生过婴儿的母亲，静谧安详地舒展着，漾起甜美的微笑。年少时青涩的梦和遥远的童年都和这暮秋一起去之遥远了，只剩下洗尽铅华的脱俗之美……

1．第二段中说秋天往往“一下子就翩然而至”，“让人猝不及防”，这和春的来临不一样。那么春天来临具有怎样的特点？又有哪些标志？

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2．“我”喜欢秋天的理由是什么？（根据文章内容用简洁的语言回答，不少于4点）

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3．赏析下列加粗词语的妙处。

这时抿一小口，再吐一口气，你会觉得边呼吸都染着菊花香了。

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4．末段中说：“收获过的秋天宛如刚生过婴儿的母亲，静谧安详地舒展着，漾起甜美的微笑。”结合文章内容谈谈你对这句话的理解。

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下列图像能正确反映其对应关系的是

A.向一定量pH=3的硫酸溶液中不断加水稀释

B.向一定量的饱和石灰水中不断加入生石灰

C.向盛有相同质量的镁和氧化镁的烧杯中分别加入相同溶质质量分数的稀盐酸至过量

D.将一定量的木炭放在盛有氧气的密闭容器中加热至燃烧

阅读理解。

     Britain's most popular lie has been disclosed, with one in four people admitting using "Sorry I had no

signal" when returning a missed mobile phone call, a survey found.  

     Researchers found the average Briton tells on average four lies every day or almost 1500 every year.  Almost one in six men admitted they were most likely to lie to their wife or girlfriend, on average at

least twice a day.  The most popular lie was saying you had no mobile phone signal, with one in four

people admitting regularly using the little white lie.  It usually came after they hit the "ignore" button when

their mobile rang.  

     Three quarters of people think women are better liars.  The research found 46 per cent of girls have

been caught lying, compared to 58 of men.  

     The second most common fib(无关紧要的谎言) is "I haven't got any cash on me" when asked for

money by tramps (流浪者), beggars and Big Issue sellers.  "Nothing's wrong - I'm fine" came third

followed by "You look lovely" and "Nice to see you".  

     Modern technology turned out to have contributed to many lies with "I didn't get your text" in 18th,

"Our server was down" in 20th and "My battery died" in 26th place.  

     Other lies to make the top ten included "I'll give you a ring", "We're just good friends" and "We'll have

to meet up soon".  "I'm on my way" and "No, your bum doesn't look big in that" completed the top ten.  

Men tell the most fibs, coming out with five every day compared to women who lie just three times.  

     In many cases perhaps it is better to flatter with a fib than destroy someone with the truth, according

to a spokesman for OnePoll, which carried out the research of 4,300 adults.

1.  Whether the person being called has pushed the "ignore" button or ______, the caller at the other

      end hears the same tone.

A.  really has no signal

B.  can't get the text

C.  has a battery failure  

D.  answers the call

2.  Most people think women are better liars because ______.

A.  there're more women liars

B.  fewer women liars are found out

C.  women tell less harmful lies

D.  women are harder to convince

3.  "Our server was down" is perhaps a lie told as an excuse for not ______.

A.  inviting a friend to dinner

B.  responding to an e-mail

C.  coming to a party on time

D.  cleaning one's room

4.  "You look lovely" and "I'm on my way" rank _____ on the popular-lie list.

A.  3rd and 8th

B.  5th and 10th

C.  4th and 9th

D.  5th and 12th

工程项目的风险管理，是把可能遭受到的损失估计得高些，这是提高项目效益的重要措施。