子女与父母意见发生分歧时,要采取回避的态度,不要激化矛盾。[ ]
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While there are quite a few differences in the education system, in many countries education is ____.
A.usual
B.regular
C.normal
D.universal
在天线前方场地为上坡时,安装下滑天线的挂高比在平地安装要高。