肝癌最常见、最重要的症状与体征是（）

A.食欲减退

B.进行性肝脏肿大及肝区痛

C.肝硬化表现

D.血性腹水

E.黄疸

Resource leveling attempts to ______.

A) reduce resource requirements by smoothing out period-to-period resource assignments
B) ensure that the budget abnormalities are overcame
C) reduce the amount of resources so that they can be shared with on other endeavors
D) increase the amount of the project manager's authority so that budget dollars can be appropriated