皮皮学，免费搜题
登录
搜题
【单选题】
世界酒店业的兴起与发展经历了四个阶段:第三个阶段是A.
古代客栈时期
B.
豪华饭店（大饭店）
C.
商业饭店时期
D.
现代新型饭店时期
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Engineers had a better choice of material, ______________ (当新发明被投入使用以后).
【单选题】If a better material______, the strength of the part would have been increased.
A.
had been used
B.
had been using
C.
being used
D.
using
【单选题】A ) It looks unusual. B) It transforms. C) It uses better material. D) It is a new product.
A.
It looks unusual.
B.
It transforms.
C.
It uses better material.
D.
It is a new product.
【简答题】Developing school skills Books to help you to become better teachers or better learners These materials can help both teachers and students of different levels and grades. Reading and Langua...
【单选题】If a better material______, the cost of the product would have been decreased.
A.
had been used
B.
had been using
C.
being used
D.
using
相关题目：
参考解析：
知识点：
题目纠错 0
发布
