下列关于无形资产说法正确的有（）。

A.无形资产不具有实物形态

B.无形资产不具有可辨认性

C.专利权和非专利技术都属于无形资产

D.为了反映和监督无形资产的取得、撤销和处置等情况，企业应当设置"无形资产"、"累计折旧"等科目进行核算

The whole class            greatly moved at his words. [ ]

A. is

B. are

C. was

D. were