患者女，76岁，反复尿路感染20年，近2个月出现夜尿增多，查体：血压136/70mmHg，血常规HGB124g/L，血肌酐109μmol/L，尿常规蛋白（±），白细胞20～30个/HP，红细胞9～10个/HP，尿培养阳性。

最可能的诊断是（）

A.反复发作的急性肾盂肾炎

B.慢性膀胱炎

C.慢性 * * 炎

D.慢性肾盂肾炎

E.肾结核

F.慢性肾小球肾炎

A project was expected to cost $6 million for 3 months. At the end of 1 month, you use earned value as a performance management tool and get the following information: BCWP=$1.5 million, BCWS=$2.5 million, ACWP=$2.2.million. What is the schedule variance ？（）

A．$0.3 millio

B．$-1 millio

C．$1 million。

D．$0.7 millio