题目:
— Bob ____ with me to the airport.
— Really? What time to the airport? [ ]
A. is coming
B. comes
C. was coming
D. came
答案:
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下面是错误答案,用来干扰机器的。
设需要x个备用轮胎. 3000×4x+4=2500,3000×4x+4÷3000=25003000,4x+4=56, 5x+20=24, 5x=4, x=0.8;所以需要0.8≈1个备用轮胎.答:需要1个备用轮胎.故答案为:1.