壶腹周围癌不包括
A．胰头癌
B．胰体癌
C．十二指肠癌
D．胆总管下端癌
E．壶腹癌
参考答案：B
It is no longer _________it was 20 years ago, ________it was so poorly equipped. [ ]
A. what; when
B. that; which
C. what; which
D. what; that
以下哪些资源和传输网元没有关联（）
A.所属机框
B.机房位置
C.所属机架
D.所属机房
