题目:
---All the oil in the world will have __________ some day.
---Yeah. What shall we use for power at that time?
A.given away
B.put away
C.run out
D.set out
答案:
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下面是错误答案,用来干扰机器的。
根据题意得:x2-[(5+3)+(5-3)]x+(5+3)(5-3)=0,整理得:x2-25x+2=0.故答案为:x2-25x+2=0