下列问题中适于康普顿背散射成像技术检验的是()。
A.金属表面的腐蚀裂纹
B.原子序数低、厚度小物体的层析射线照相
C.厚度很大物体的表面层内部缺陷
D.A、B和C
参考答案:D
____ the youth ____ the rising sun at 8 or 9 o'clock am, Mao Zedong expressed his great hope for the young men.
A.Comparing; with
B.Compared; to
C.Compared; with
D.Comparing; to
在编制记账凭证时,可以只填会计科目编号,不填会计科目的名称,以简化工作。()