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【判断题】
三次冷却或空指相变之后直到室温这一温度区间的冷却参数控制。对于一般钢材，相变完成，形成体和珠光体。相变后多采用空冷，使钢板冷却均匀、不发生因冷却不均匀而造成的弯曲变形，确保板形质量。另外，固溶在体中的过饱和碳化物在空不断弥散析出，使其沉淀强化。A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He was wet to the skin, his whole body was ______ and trembling.
A.
stiff
B.
straight
C.
steady
D.
hard
【单选题】Doctors warn people that one may develop skin cancer with his skin ________ to the sun too much.
A.
exposes
B.
exposing
C.
exposed
D.
being exposed
【简答题】司法解释规定违法所得多少钱的即构成犯罪?
【单选题】Every human being has a【C1】______ arrangement of the skin of his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of fingerprints and discovered that【C2】...
A.
particular
B.
unique
C.
special
D.
strange
【单选题】In such a background, his white hair was particularly his dark skin．
A.
in relation to
B.
in need of
C.
in contrast to
D.
in favor of
【简答题】Every human being has a unique ① arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no ...
【单选题】Passage Two Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of fingerprints and discovered...
A.
They vary from person to person.
B.
They are easily hidden and removed.
C.
Their uniqueness is beyond explanation.
D.
They remain unchanged throughout one's life.
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