常用的骨显像剂是()。
A.99mTc-MDP
B.99mTc-DTPA
C.99mTc
D.99mTc-MIBI
E.99mTc-GH
参考答案:A
建筑使用管理单位送修灭火器时,一次送修数量不得超过计算单元配置灭火器总数量的()。
A.1/4
B.1/3
C.1/2
D.2/3
It be really cold in November in Hefei though we usually have warm and sunny days.
A.should
B.will
C.must
D.can