Kate isn't very ______, she likes to stay at home and read. [ ]

A. outgoing

B. kind

C. loving

D. quiet

一般而言，用肺呼吸的动物指（）。

A、除鱼类之外的脊椎动物

B、除鱼类、两栖类之外的脊椎动物

C、脊椎动物

D、脊椎动物和高等无脊椎动物