一.根据答语写问句1.------------------------.She's pretty short.2.------------------------.Yes,he has a mustache and beard.二.单句改错1.Where is the country CDs?They are over there.-----------------------------------------------------.一
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一.根据答语写问句1.------------------------.She's pretty short.2.------------------------.Yes,he has a mustache and beard.二.单句改错1.Where is the country CDs?They are over there.-----------------------------------------------------.一
一.根据答语写问句
1.------------------------.
She's pretty short.
2.------------------------.
Yes,he has a mustache and beard.
二.单句改错
1.Where is the country CDs?
They are over there.
-----------------------------------------------------.
一.若x + 6 = y - x - 8 = 2x + 3y - 1,则x = --------------,
y = -------------,3x - y = -------------.
越细越好Thank,Thank!
能不能两个一起回答呀？不然不好选最佳呀。
一.根据答语写问句1.------------------------.She's pretty short.2.------------------------.Yes,he has a mustache and beard.二.单句改错1.Where is the country CDs?They are over there.-----------------------------------------------------.一
一.1
How tall is she
What does he look like
二.Where are the country CDs?
They are over there.
数学
由x + 6 = y - x - 8,得到y=2x+14
代入y - x - 8 = 2x + 3y - 1,则得到
2x+14-x-8=2x+3(2x+14)-1
x+6=8x+41
7x=35
x=5
代入y=2x+14,得：
y=2*5+14
y=24
把x=5,y=24代入3x - y
3x - y=3*5-24
3x - y=-9
所以x=5,y=24,3x - y=-9
-----------------------------------------------------
算我帮你了!
一般情况下没问题,
最多错出现在英语的一.1上.
：）
X=5.6
y=-9.8
3X-y=26.6
数学 X+6=Y-X-8 → Y=2X+14
X+6=2X+3Y-1 → 3Y=-X+7
∴ 3(2X+14)=-X+7 → X=-5
Y=-5×2+14=4 3X-Y=-19
一. 1.What's she?
2.Does he have a mustache and heard?
二.问句中is 改为are