【单选题】How did John Parker get his freedom
A.
Running away by himself
D.
Purchasing his own freedom
【多选题】企业制定收账政策可以解决的问题是( )。
【简答题】远洋航运是国际货物运输的主要形式。( )
【多选题】企业制定收账政策可以解决的问题是( )。
【简答题】How did John usually go to school? He was sent to school by ______.
【单选题】How did John Rivers get to know Jane's real name?
C.
From Mr. Briggs, the lawyer.
D.
From the signature on my sketch.
【多选题】关于弹力和摩擦力,下列说法中正确的是()
C.
物体间有摩擦力产生时,必有弹力,弹力和摩擦力的方向必定是垂直的
D.
物体所受的摩擦力方向可能与物体运动方向不在同一直线上