鼻硬结病的病理特点是（）。
A.慢性卡他性变
B.急性卡他性变
C.慢性、进行性肉芽肿性变
D.慢性坏死性变
E.慢性纤维素性变
参考答案：C
It is absolutely essential that William ______ his study in spite of some learning difficulties.[ ]
A. continue
B. continued
C. has continued
D. would continue
公司登记管理条例规定，公司法定公积金转增为注册资本的，验资证明应当载明留存的该项公积盒不少于转增前公司注册资本的( )。
A．15%
B．25%
C．35%
D．55%
