赫鲁晓夫的政治改革中最具深远意义的是（）。
A.平反冤假错案
B.破除对斯大林的迷信
C.强调集体领导原则
D.精简机构
参考答案：B
龈沟深度超过多少均应记录（）
A.1mm
B.2mm
C.2.5mm
D.3mm
E.3.5mm
He has entertained hopes of being admitted to a sight of the wonderful valley , of ____ beauty he has heard .
A．which
B．of whose
C．whose
D．form which
