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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It wasn’t until 1970 the war finally came to an end after seven years of hard fighting.
A．that
B．before
C．when
D．since
锥体外系损害时肌张力变化是（）
A.肌张力正常
B.肌张力减低
C.肌张力缺失
D.折刀样肌张力过高
E.铅管样肌张力过高
