以暗示方式披露隐含的哲理的文本是（）文本。
A.象征型
B.创意型
C.再现型
D.表现型
参考答案：D
Is your grandmother _____________ than your grandfather?[ ]
A. older
B. old
C. young
It is vital that every piece of equipment ________ before the experiment.
A．is checked
B．will be checked
C．be checked
D．must be checked
