下列关于五脏与血液关系的叙述，错误的是
A．肝主藏血 B．脾主统血C．肾精化生血 D．肺气助心行血E．心调节血流量
参考答案：E
It was three months later _____ he completed the job with difficulty.
A．since
B．before
C．while
D．that
资源错误、改接入方式等退资源处理的工单应退（）单
A.建设单
B.业务单
C.链路人工修改
