You can hardly imagine in       that        birds eat       insects. [ ]

A.such a short time;so little;such many

B.such a short time;so few;such few

C.so short a time;such few;so many

D.so short a time;such little;so many

滑膜骨软骨瘤病属于（）。

A.骨组织肿瘤

B.软骨组织肿瘤

C.纤维组织肿瘤

D.骨髓组织肿瘤

E.滑膜组织肿瘤