螺旋压力机由主螺杆的上端与飞轮固结,下端与滑块相连,由主螺母将飞轮—主螺杆的旋转运动百年未滑块的上下()运动。
A.曲线
B.旋转
C.直线
D.圆周
参考答案:C
_____ no one in the house, the detective had to leave.[ ]
A. There is
B. There was
C. There being
D. There to be
严格来说,理财经理也属于传统意义上的金融产品销售人员。( )