进料液体量占总进料量的比率，称为（）。 A.液相分率 B.液体浓度 C.液汽化 D.

There are many things that you should be careful with when you are alone at home.  Read the following  situations to protect yourself.    
●Keep the door locked when you are alone at home. Many people think it's the best way to protect      themselves.    
●Keep a list of phone numbers to call for help-such as 110, the police station or a neighbor's number    
●Be careful with the electrical appliances(电器).  If you don't know how to use them, ask your parent. Make a safety check before going to sleep.
●Look through the keyhole when you hear the doorbell. If there are strangers, ask " Who's that?" with   the door locked and say" Come back later. " Don't tell them that your parents are away.  Say" Mum's         having a shower. "or "Dad's having a sleep. "

Protect Yourself When Home Alone
Situations	Solutions
You are alone at home	Keep the door   小题1:
To   小题2:	Keep a list of phone numbers
Before  小题3:	Make a safety check of the electrical appliances
Talk to the strangers	Ask " 小题4: ?”with the door locked.
	Don’t say your parents  小题5: