已知f(x)=2x-1,且f(a)=3,则a=______.
∵f(x)=2x-1,且f(a)=3,
∴2a-1=3,解得a=2.
故答案是:2.
There ______ a basketball final next week. [ ]
A. will have
B. is going to have
C. are
D. is going to be
慢性肾小球肾炎致慢性肾功能不全时()
A.血尿酸高于正常
B.尿尿酸240mg/24h
C.二者均有
D.二者均无