The word “ungelivable” based on Chinese, which has become a big hit online very quickly, ______ a message that Chinese can also serve as an addition to English vocabulary.

A．delivers

B．simplifies

C．declares

D．clarifies

纤维素和半纤维素大量存在于（）。

A.麸皮

B.水果

C.蔬菜

D.畜肉

E.虾皮