抗原进入人体后,使人体产生一种抵抗该抗原的蛋白质是[ ]
A.病原体
B.病毒
C.抗体
D.免疫
答案:C
Your company has established a reward and recognition system for its project management professionals. Project cost performance is used as a criterion to determine rewards. What should you do to ensure that rewards reflect actual performance ?()
A.Consider overtime work as part of the jo
B.Prepare a cost baselin
C.Use earned value management to monitor performanc
D.Estimate and budget controllable and uncontrollable costs separatel
在我国,既是公民基本的民主权利,又是公民参与国家管理的基础和标志的是()。
A.生存权和劳动权
B.选举权和被选举权
C.言论、集会等自由权利
D.对国家机关及其工作人员的监督权