皮皮学，免费搜题
登录
搜题
【单选题】
下列关于冷加工与热处理的叙述，错误的是( )。A.
钢材经、冷扭、冷轧等冷加工后，屈服强度提高、塑性增大，钢材变硬、变脆
B.
钢筋经后，再放置一段时间(“自然时效”处理)，钢筋的屈服点明显提高，抗拉强度也有提高，塑性和韧性降低较大，弹性模量基本不变
C.
在正火、淬火、回火、退火四种热处理方法中，淬火可使钢材表面硬度大大提高
D.
冷拔低碳钢丝是用碳素结构钢热轧盘条经冷拔工艺拔制成的，强度较高，可自行加工成材，成本较低，适宜用于中小型预应力构件
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
【单选题】If we don't put the meat in the fridge, it may _____. [ ]
A.
go wrong
B.
go well
C.
go bad
【判断题】Processed meat may contain other ingredients but they must consist of at least 30% of meat.
A.
正确
B.
错误
【判断题】One of the bricks of the Healthy Eating Pyramid includes eating more Red Meat, Processed Meat, and Butter. ( )
A.
正确
B.
错误
【单选题】Who studied 800 cases linked processed meat, such as hot dogs and ham, to bowel cancer?
A.
Experts from the WHO’s International Agency for Research on Cancer (IARC)
B.
Cancer researchers
C.
Health experts in some countries
D.
Meat industry groups
【单选题】Processed meat is meat that has been preserved by____
A.
Curing
B.
salting, smoking,
C.
drying or canning.
D.
all of above
相关题目：