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已知x=-3是方程kx+4-2k-x=5的解,则k的值是____ .
上一题 下一题 0.0难度 选择题 更新时间:2018-07-16 06:41:37

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-2

同类题1

阅读短文,判断正(T)误(F).
    I was in town yesterday. I decided to stop at the bank to see Jane. I thought she might have time to go for lunch with me.
When I got to the bank, they told me she had just been out. I asked them if she would be back by 10:30 or 11:45, and they told me “Yes”. I had some time, so I decided to wait for her. I walked over to take a seat by the window. I watched everyone coming in. It was 12:30, and I was sure she couldn't come back until after lunch. I got up, and as I started to walk to the door, someone called my name. I turned around and was surprised to find it was Jane. She said she had not left her office all the morning.
____ Yesterday I was in a city.
____ I wanted to have lunch with Jane.
____ Jane was in her office all the morning.
____ I didn’t wait Jane any more.
____ In fact, Jane’s workmates made a mistake.

同类题2

下列关于实验材料与方法的叙述,恰当的是(  )

同类题3

What are they?

同类题4

图是某同学做的胸廓变化与呼吸关系的模拟实验,并绘制的肺内气压变化曲线图。下列不符合题意的是  (  )

同类题5

已知向量 m→ =( 3sinx4,1 ), n→ =( cosx4,cos2x4 ).
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