所谓陈述性知识主要包括( )
A.命题与命题网络
B.表象
C.线性排序
D.上述各项知识
参考答案:D
The question that puzzles them is ___they can finish the work on time.
A.what it is that
B.what is it that
C.how is it that
D.how it is that