皮皮学，免费搜题
登录
搜题
【单选题】
下列哪个不属于回火的目的( )A.
稳定钢的组织和尺寸
B.
提高钢的硬度
C.
减少或消除内应力
D.
提高工件的韧性
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】A PDM system can help moldemakers improve the efficiency of data management.
A.
正确
B.
错误
【判断题】Application of a PDM system in mold design can help the users to ensure the quality of their products.
A.
正确
B.
错误
【单选题】The two newspapers gave different ______ of what happened.
A.
versions
B.
editions
C.
productions
D.
texts
【单选题】—Look ______ the two children, they're Nick and Lily. —Oh, they're twin ______. [ ]
A.
at; brother and sister
B.
/; brothers
C.
of; sisters
D.
after; boys
【单选题】The musician along with his band members _____ ten performaces in the last three months.
A.
gives
B.
has given
C.
have given
D.
give
【简答题】实验发现电子吸收光谱并非线状光谱,吸收峰宽度约为1000—3000cm-1 原因:
【判断题】A PDM system can help moldmakers improve the efficiency of data management.
A.
正确
B.
错误
【简答题】All the girls swam in the lake except two, who _____ halfway. A．gave off B．gave up C．gave away D．gave out
【单选题】_________you gave me last night are of great use to me. [ ]
A.
The two pieces of advice
B.
The two advices
C.
Two pieces of advice D, Two advices
相关题目：