What is true of Mount Rainer according to the first paragraph?
A.It is the highest maintain in Washington DC.
B.It is an active volcano.
C.It has erupted only oncE.
D.The new form. of Mount Rainer results from glacial icE.

A.It
B.
B.It
C.
C.It
D.
D.The
E.

【参考答案】

D
解析：从第一段最后一句后半部分可以看出，现在的山形是冰川所致。