原式=2+2-5(2+5)(2-5)=2+5-2=5．
故本题答案为：5．
We'll have dinner at Qanxilong Restaurant, which is famous its seafood. [ ]
A. of
B. to
C. for
D. as
十四经穴总数为
A.354个
B.349个
C.361个
D.363个
E.364个
