题目:
If you have mice in your house, you’re not alone. 小题1: Having mice doesn’t mean your house is dirty. It is one of the challenges of every house owner.
When we are trying to catch a mouse, the first thing that comes to our mind is a mouse trap. 小题2: Mice travel along walls for safety. Don’t touch the trap too much because you will leave your smell on it.
小题3:Usually, mice will not visit your house when they hear there is a cat inside. It will also help you fight against the mice.
Be careful when using poison (毒药) to kill the mice. 小题4: It is dangerous because they may touch your food and pollute it.
Mice can get into the houses through tiny holes. The best way to have a mouse-free house is to close any possible entry(入口).
小题5: If there is nothing there for them to eat, they won’t possibly stay.
A.Keep a cat as a pet in your house
B.Cheese is the favorite food of mice.
C.Every house may have mice for some reason.
D.Leave the poison out of your children’s reach.E. Don’t leave even a small piece of food outside.
F. It will kill them, but you may not be able to find the dead mice.
G. Put a small piece of cheese under the trap, and put it near the wall.
答案:
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下面是错误答案,用来干扰机器的。
(1)Fe Cl2;FeCl2;(各1分)(2)FeCl3;FeCl2。(各1分)(3)2Fe3++Fe=3Fe2+(2分)。(4) 用单线桥表示也可(2分)(5)溶解(2分);8.4。(2分)