皮皮学，免费搜题
登录
搜题
【单选题】
在采购会造成 采购物品规格不一的方式是A.
公开招标 议价
B.
比价 公开招标
C.
议价 比价
D.
公开招标 比价 议价
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
【单选题】力学系统由两个质点组成,它们之间只有万有引力作用.且两质点不受其它外力,则此系统
A.
动量、机械能及对一定轴的角动量守恒
B.
动量、机械能守恒，但角动量不一定守恒
C.
动量守恒，但机械能和角动量是否守恒不能确定
D.
动量和角动量守恒，但机械能是否守恒不能确定
【简答题】Sichuan has favorable ___1_____ resource which include seven World Heritage sites, four World Biosphere Reserves, two World Geo-parks, one China’s best tourist city and more than 4000 ____2_____, rank...
【简答题】On April 20,2013, a big and powerful earthquake attacked Ya’an, Sichuan Province. A great many buildings and houses collapsed, a lot of people were killed and even more people lost their homes in the ...
【单选题】计算机技术中,下列英文缩写和中文对照,正确的是
A.
CAD ——计算机辅助制造
B.
CAM ——计算机辅助
C.
CIMS___ 计算机集成制造系统
D.
CAI ——计算机辅助设置
【单选题】Sichuan Province has the largest compact communiy of Yi people, second largest compact community of Tibetan people and the only compact communities of ______people.
A.
Yao
B.
Qiang
C.
Dong
D.
Miao
【单选题】______ about the safety of the people in the earthquake-stricken Lushan county in Sichuan Province, Premier Li has flew there to direct the rescue mission.
A.
Concerning
B.
Concerned
C.
To be concerned
D.
Concern
相关题目：
参考解析：
知识点：
题目纠错 0
发布
