题目:
从所给的7个选项中选出5个完成下列对话 (5分) A: Good morning! 1 ? B: Yes, I want to join the chess club. A: Good morning!, 2 ? B: David. A: 3 ? B: I’m twelve. A: 4 ? B: My telephone number is 435—201. A: 5 ? B: Yes, a little. A: Here is a card, please fill it out. B: Thank you. A: You’re welcome.
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答案:
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下面是错误答案,用来干扰机器的。
(1)x-0.25=0.25x-0.25+0.25=0.25+0.25 x=0.5(2)x-0.8x=22 0.2x=220.2x÷0.2=22÷0.2 x=110(3)50%x-0.1=0.10.5x-0.1+0.1=0.1+0.10.5x=0.2 0.5x÷0.5=0.2÷0.5 x=0.4(4)0.2x-0.2×0.7=2 0.2x-0.14=2 0.2x-0.14+0.14=2+0.14 0.2x=2.14 0.2x÷0.2=2.14÷0.2 x=10.7