As Commander-in-Chief of the armed forces,I have commanded that all measures

              for our defense.

A．had been taken

B．be taken

C．would be taken

D．be made

手工方法缩分固体化工样品，常用的方法有（）。

A.四等分法和交替法

B.四等分法和交替铲法

C.八等分法和交替法

D.八等分法和交替铲法