CO和 CO₂性质差异很大，将两种气体分别进行下列实验操作，不能区别它们的是（   ）

在“人面桃花相映红”这句诗中，用光学知识解释桃花红的原因是(   )

写出图中a、b两种仪器的名称：____  、____ 。

    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 have been gathering within you.

B. When we have a problems, 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.