It is generally believed that teaching is _____ it is a science. 
#74559
A
an art much as
B
much an art as
C
as an art much as
D
as much an art as
推荐题目
Make marks _______ you have questions. 
#66894
A
which
B
in which
C
where
D
in where
   ______they have been working hard to find?
#70400
A
Is that what
B
Is that
C
It is that
D
Is it that