题干
（江苏卷31）. ----I have tried very hard to find a solution to the problem, but in vain
----why not consult with Frank? You see, _________.
A：great minds think alike
B：two heads are better than one
C：a bird in the hand is worth two in the bush
D：it’s better to think twice before doing something
答案(点此获取答案解析）
B
表示第
秒末时机器猫所在的位置的坐标，且
，那么下列结论中不正确的是