一般立柱式支持装置可带动X线管完成几个方向的移动和几个方向的转动

A．2:3

B．2:4

C．3:3

D．4:2

E．2:2

Because a degree from a good university is the means to a better job, education is one of the most sophisticated areas in Japanese fife.

A．complex

B．competitive

C．considerate

D．superficial