问题
填空题
当m=______时,二元一次方程2x+my=8有一组解为
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答案
将x=1,y=2代入方程得:2+2m=8,
解得:m=3.
故答案为:3
当m=______时,二元一次方程2x+my=8有一组解为
|
将x=1,y=2代入方程得:2+2m=8,
解得:m=3.
故答案为:3
补全对话(共5分 每小题1分)
Linda: No. 小题1: Laura: A man named Wang Dawei called the 110 hotline. 小题2: ,his car crashed into (撞上) another one. Linda: Who was trapped (被困) in the car, do you know? Laura: 小题3: They couldn't move out of the car. Linda: 小题4: Laura: Wang Dawei was all right, but his wife hurt her left leg. 小题5: Linda: Thank goodness! He should be careful next time. |