皮皮学，免费搜题
登录
搜题
【单选题】
Material of similar products is easily obtainable ___ a much lower price.A.
at
B.
on
C.
from
D.
for
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
【简答题】水文现象具有时程变化的( )与( )的对立统一,地区分布的( )与( )的对立统一。
【单选题】Which one of the following will drastically affect the performance of the insulation material, if the cable is exposed to?
A.
Weather
B.
Oil
C.
Chemicals
D.
All of the above
【判断题】The structure of a material depends on how it is processed, and a material's performance is a function of its properties.
A.
正确
B.
错误
【判断题】High yield strength is beneficial to material cold forming and welding performance improvement.
A.
正确
B.
错误
【单选题】Which material has the best casting performance ?
A.
White cast iron
B.
Gray cast iron
C.
Aluminum alloys
D.
Magnesium alloys
相关题目：