下述病理改变哪一个见于天疱疮损害中（）
A.上皮增厚
B.上皮萎缩
C.棘层松解
D.上皮角化层内有微脓肿
E.固有层内有肉芽肿
参考答案：C
保险公司对每一危险单位的自负责任不得超过其实有资本金加公积金总和的（）。
A.10％
B.20％
C.50％
D.70％
John Preston was tired（）living in east London, in which he had moved after his wife's death.
A.to
B.of
C.at
D.for
