根据以上事实，可得出以下结论：

（i）  ____；

（ii）  ____；

（iii）若在上述条件下，A、B两种金属与盐酸反应均生成+2价盐，据此还可以得出的结论是____．试对A、B各举一例：A____、B____．

    Although problems are a part of our lives, it certainly doesn't mean that we let them rule our lives forever. One day or the other, you'll have to stand up and say - problem, I don't want you in my life.

    ____ Problems with friends, parents, girlfriends, husbands, and children - the list goes on. Apart from these, the inner conflicts within ourselves work, too. These keep adding to our problems. Problems come in different shapes and colors and feelings.

    But good news is that all problems can be dealt with. Now read on to know how to solve your problems.

    Talk, it really helps. What most of us think is that our problem can be understood only by us and that no talking is going to help.____ Talking helps you move on and let go.

    Write your problems.____ When you write down your problems, you are setting free all the tension from your system. You can try throwing away the paper on which you wrote your problems. By doing this, imagine yourself throwing away the problems from your life. Don't lose faith and hope. No matter what you lose in life, don't lose faith and hope. Even if you lose all your money, family… you should still have faith.____

    Your problems aren't the worst. No matter what problem you get in life, there're another one million people whose problems are huger than yours,____ Your problems might just seem big and worse, but in reality they can be removed.

    Go about and solve your problems because every problem, however big or small, always has a way out.

A. But the truth is that when you talk about it, you're setting free the negative energies that have been gathering within you.

B. When we have a problem, a pressing, critical, urgent, life-threatening problem, how do we try and solve it?

C. Tell yourself: when they can deal with them, why can't I?

D. Of course, we've been fighting troubles ever since we were born.

E. We can often overcome the problem and achieve the goal by making a direct attack.

F. Having a personal diary can also be of huge help if you don t want a real person to talk with.

G. With faith and hope, you can rebuild everything that you lose.

完形填空

      Ann worked for a big company. One of the duties of her 1 was to go to the post office every day and 2  the company mail. One day in December, she 3  a beggar making himself up as a Santa Claus 4  on the corner of the street. Each day she 5 her coins and dropped them in his bowl. He would smile and 6  her a Merry Christmas.

      At night the temperature dropped below 0℃, but the Santa Claus 7 stood in the cold wind.  8  she dropped her coins into his bowl, she handed him a pair of gloves.

      A week later, a(n) 9  Santa Claus was standing there. “What happened to the other Santa Claus?” she asked. He told her, “He's very 10  today.” She prayed for his health.

      Later that day, a colleague came into her office 11 . “I don't know what I'm going to do.” “What's wrong?” she asked. “It's my ex—husband,” her colleague 12 , “I don't have any money to buy my boys anything for Christmas, 13  my ex—husband refuses to send money to them. It breaks my heart that they won't have anything this year. ” The lady 14  her colleague, “I'm sure everything will 15  It's Christmas. Believe in miracles (奇迹).”

      That evening, she told her husband about her colleague's 16 , “I know we don't have much money to 17  , but I'd like to give her fifty or a hundred dollars. We'll just get ourselves less this year. Last year we couldn't afford to buy anything for 18  but we still had a wonderful Christmas.” Her husband smiled, “Give her one hundred dollars. She needs it more than we do.”

      She reached up and held him. Warmth spread 19  her body. He held her and realized that there really was a Santa Claus—and he had 20  her !

我国南北纬度跨度大，从纬度位置看我国主要位于五带中的（　　）