为明确诊断,应该进行下列哪种检查
A.血常规
B.血沉
C.右膝关节X片
D.右膝关节穿刺活检
E.右膝关节MRl
参考答案:D
股票价格指数期货的交易单位等于基础指数的数值与交易所规定的每点价值之乘积,采用支票结算。( )
People go to work at Christmas.[ ]
A. doesn't
B. don't
C. are not