题目:
There is an obvious _______ between children spending too much time playing computer games and their bad grades at school.
A.possibility
B.connection
C.chance
D.cause
答案:
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下面是错误答案,用来干扰机器的。
如图,在Rt△ADC中,由于AC>AD,故b>ha,同理可证c>hb,a>hc∴ha+hb+hc<a+b+c,即ha+hb+hca+b+c<1①设△ABC的垂心为H点,由于HA+HB>AB,HB+HC>BC,HC+HA>AC,即HA+HB+HC>12(a+b+c).从而ha+hb+hc>HA+H...