搜题请搜索小程序“爱下问搜题”
问题
判断题
调质的目的是提高材料综合力学性能，为以后热处理作准备，用于低碳结构钢或低碳合金钢。( )
答案
参考答案：
错
判断题
判断下列各图是(√)否(×)符合句意。
( ) 1.
I can see eleven crayons.
( ) 2.
This is a walkman.
( ) 3.
She is from America.
( ) 4.
This is a man.
( ) 5.
The bike is under the tree.
( ) 6.
He is tall.
查看答案
判断题
在发动机怠速或小负荷时，晶低管电动汽油泵的柱塞以低频率缓慢动作。
查看答案
I can see eleven crayons.
This is a walkman.
She is from America.
This is a man.
The bike is under the tree.
He is tall.