(6分)现代以石油化工为基础的三大合成材料是________、_______ 发布时间:2017-07-29 18:06 │ 来源:www.tikuol.com 题型:填空题 问题: (6分)现代以石油化工为基础的三大合成材料是________、________、__________。
题型:填空题 He was admitted into Beijing University and years of his hard work ________ eventually.[ ]A. paid off B. were paid offC. had paid off D. had been paid off 查看答案
题型:填空题 患者,男性,4岁,乳牙。人工喂养,乳磨牙近中关系,乳前牙反,反覆中度,下颌前突,位置前移,下前牙无散在间隙,否认家族遗传史。如患者替牙期出现上颌第一恒磨牙舌侧萌出后牙反治疗方案是().A.尽早矫治反侧第一恒磨牙B.调C.观察至恒牙列,暂不处理D.改正单侧咀嚼习惯E.治疗后牙区龋齿 查看答案
题型:填空题 ( )是指以产品生产者或销售者等的产品责任为承保风险的责任保险。产品的生产者或销售者等向保险人投保产品责任保险,缴付一定的保险费后,将这种赔偿风险转嫁给保险人,一旦因产品责任给消费者或其他人造成人身伤害或财产损失,依法应由该生产者或销售者等负责时,由保险人予以赔偿。A.公众责任保险 B.产品责任保险C.职业责任保险 D.雇主责任保险 查看答案