放射性核素骨显像的主要缺点是()。
A.灵敏度不高
B.显示病变范围局限
C.假阳性率高
D.假阴性率高
E.特异性差
参考答案:B
All the citizens here strongly insist those who ________ “harmful” advertisements in the streets ________ punished strictly.
A. putting up; will be B. to put up; should be C: being put up; shall be D. put up; be
“读书足以怡情,足以傅彩,足以长才。”出自______之手。
A.培根
B.司马光
C.吴均
D.班固