顺丁成品胶质量指标有（）、（）以及外观颜色。
参考答案：挥发份；灰份
Parents __________ much importance to education.They will do their best to give their children that
priceless gift.[ ]
A. attach
B. pay
C. link
D. apply
恶性肿瘤的临床表现为：
A．不规则 * * 出血
B．腹胀
C．腹部肿块
D．剧烈疼痛
E．腹水
