英语）
1.若5x+4的平方根是正负2,则x=（ ）.
英语：
1.It is important to have a good rest.(同义句转换）
（ ）（ ）（ ）（ ）（ ）is important.
2.I have a pain in my head today.(同义句转换）
I( )( )( ) today.
3.Tony goes to bed after he finishes his homework.
Tony ( )( )to bed ( )he finishes his homework.
人气：391 ℃ 时间：2020-06-22 05:45:02
解答
X=0
5x+4=4得,x=0
英语：
To have a good rest is important.
I have a headache today.
Tony doesn't go to bed until he finishes his homework.
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