请问下列哪一种不是常用的光纤接口().
A.LC
B.PC
C.SC
D.ST
参考答案:B
Our waste recycling project ________ a lot of investigation and paperwork had been done by the end of last term.
A.involved
B.to involve
C.being involved
D.involving
病人五心烦热,盗汗,口咽干燥,颧红,舌红少津,脉细数,此为()
A.里实热证
B.里实寒证
C.表实热证
D.里虚热证
E.表虚热证