私人部门的优势体现为()
A.组织优势
B.结构优势
C.效率优势
D.市场优势
参考答案:C
Did Jack take the doctor’s advice that he ________ in bed for a couple of days?
A.lies
B.lay
C.lie
D.laid
高碳钢气焊过程中易产生热裂纹。