My teacher is forty. _____________ he looks young. [ ]
A. Does
B. But
C. And
答案:B
我们通常所说的利率是指:()
A、市场利率
B、名义利率
C、实际利率
D、固定利率
起效最快,半衰期最短的强心苷
A.地高辛B.洋地黄毒苷C.米力农D.多巴酚丁胺E.毒毛花苷K