| 设水的电离平衡线如图所示。 |
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| （1）若以A点表示25℃时水在电离平衡时的粒子浓度，当温度升高到100℃时，水的电离平衡状态到B点，则此时水的离子积从___________增加到____________； （2）将PH=8的Ba(OH)2溶液与PH=5的稀盐酸混合，并保持在100℃的恒温，欲使混合溶液的PH=7，则 Ba(OH)2溶液和盐酸的体积比为__________。 |
2016-05-16 | 0
已知x为整数，且 ﹣ + 为整数，求所有符合条件的x的值的总和． |
2016-05-18 | 0
2016-05-19 | 0
已知函数  ，若 ,且 ，则 的最小值是（ ）
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2016-05-23 | 0
如下图，矩形ABCD中，点E为边CD上任意一点，若在矩形ABCD内部随机取一个点Q，则点Q取自△ABE内部的概率等于（ ） 
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2016-05-26 | 0
2016-05-26 | 0
2016-05-28 | 0
2016-05-28 | 0
2016-05-29 | 0
| 任务型阅读。 认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。注意。每个空格只填1个单词。 |
| You probably have lists of remember and steps to follow in order to have the best pet-friendly trip. There are, however, a few things that are best left at home. Here are a few things to forget when you're traveling with pets. Forgetting them will make your trip run more smoothly and more effectively. Time Traveling with pets will take longer and will have unexpected turns. In reality, forgetting about time means leaving impatience behind. Don't be in a rush. Your pets will require more extra stops than you will, and they'll often surprise you with unpredictable delays. Plan on leaving early and arriving later and you'll be right on time. Anger Getting angry at the delay will only make matters worse. Your feelings can add unnecessary stresses to you and your pets' travel experience. If you feel yourself becoming out of control, stop and take a deep breath. Your pets have little control over their emotions, bowel movements, or motion sickness when traveling. Remember to be kind and understanding at all times, especially when under pressure. Work Attitude This may seem like a no-brainer, but when you are traveling, leave your work attitude behind. Traveling is not a task to be accomplished; it can be an enjoyable and memorable experience for both you and your pets as long as you have the right attitude. Control Part of the joy of traveling with pets is dealing with the unexpected. You can't control everything and trying to do so will only end in frustration and anger. Knowing that things will happen beyond your control will bring great relief to you and your pets. Messes happen; accidents happen. Once you accept that, traveling with your pets will be far easier to manage. Selfishness Traveling with pets often requires an extreme amount of selflessness. Your pets rely on you to take care of their needs, and sometimes you will need to put their needs before your own. Leave your selfish ambitions behind when traveling with your pets. They need your attention and care more than anything else because of the stresses and strains of traveling. Traveling with pets can and will be a joy if you remember to leave these five items behind. It can be difficult at times to handle, but the traveling will go well if you can manage to do so. |
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2016-05-29 | 0
