在企业投资活动中，一般将( )作为投资成本的度量指标。
A．银行同业拆借利率B．企业内部收益率C．资金利息率D．社会平均利润率
参考答案：C
_________ he was, he still went on with his work.
A．Tired although
B．Tiring as
C．Tired though
D．While tired
膀胱癌血尿特点是
A．无痛持续肉眼血尿
B．疼痛间歇肉眼血尿
C．无痛间歇肉眼血尿
D．疼痛间歇终末血尿
E．无痛间歇镜下血尿
