99mTc的物理半衰期()。
A.109.7分钟
B.14.26天
C.6.02小时
D.8.04天
E.50.55天
参考答案:C
________ difficult the situation is, we'll help one another to overcome it. [ ]
A. Whatever
B. Whenever
C. Wherever
D. However
桑白皮与葶苈子都既能泻肺平喘,又能()
A.利水渗湿
B.利水通淋
C.利水消肿
D.利水止泻
E.利水退黄