在等差数列{an}中,a1=4,d=2,则a3=( )
A.4
B.6
C.8
D.10
在等差数列{an}中,a1=4,d=2,则由等差数列的通项公式a3=a1+2d=8,
故选C.
Einstein’s Theory of Relativity is so________ that most of us can not understand it.
A.controversial
B.appropriate
C.abstract
D.ridiculous