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【单选题】
对一批含碳量为0.20%的钢板进行弯折成形,但未弯到规定角度钢板就出现了裂纹。为避免再次出现这样的问题,可以采取的有效措施是:A.
对钢板进行回火处理，提高其塑性
B.
对钢板进行退火处理，提高其塑性
C.
对钢板进行淬火处理，提高其硬度和强度
D.
对钢板进行正火处理，提高其抗拉强度、硬度和韧性
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皮皮学刷刷变学霸
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【简答题】完型填空。 A thousand years age Hong Kong was covered by a thick forest. As more and more people came to 1 in Hong Kong, these trees were cut down and burnt. Now there is 2 forest left, though there are st...
【简答题】A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 1 in Hong Kong, these trees were cut down and burnt. Now there is 2 forest left, though there are still so...
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【单选题】Why did more and more people came to eat at the Happy Restaurant?
A.
Because the price was lowered( 降低 ).
B.
Because there were more kinds of dishes.
C.
Because men and women were given menus with different prices on them.
【多选题】意见适用于()
A.
传达要求下级机关办理和有关单位需要周知或共同执行的事项
B.
用于下级机关对上级机关提出工作建议
C.
用于对所属机关、组织和人员提出规范性的要求和措施
D.
用于上级机关对工作进行指导
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