皮皮学，免费搜题
登录
搜题
【多选题】
塑料包装材料的特点有（）A.
物理性能优良
B.
化学稳定性好
C.
价格上具有竞争力
D.
轻质材料
E.
塑料加工成型简单多样
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】Although there are so many kinds of transport methods, the ocean transport method is the most widely used and welcome by the businessmen.
A.
正确
B.
错误
【简答题】For a more detailed treatment of spectral methods, the reader is referred to one of the many books available on the application of spectroscopic methods to organic chemistry.
【单选题】Many of the methods are ______ ( new and creative).
A.
resources
B.
productive
C.
innovative
D.
solution
相关题目：