包装材料应允许物品内部空气的排出和蒸汽的透入不应用A.市售铝饭盒与搪瓷盒 B.带通气 发布时间:2017-05-25 11:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 包装材料应允许物品内部空气的排出和蒸汽的透入不应用A.市售铝饭盒与搪瓷盒B.带通气孔的器具C.全棉布D.一次性无纺布E.一次性复合材料(如纸塑包装)
题型:单项选择题 (2013·天津高考)If he had spent more time practising speaking English before, he ________ able to speak it much better now.A.will beB.would beC.has beenD.would have been 查看答案