导致冠心病的主要原因是 、 和 。
高脂肪饮食 缺乏运动 吸烟(答案不唯一)
______ be laughed at by his mates, he kept about quiet about punishment.
A.So not as to
B.So as not to
C.In order not to
D.In order to not
其他纺织材料制其他无纺织物服装