项目在整个计算期内各年净现金流量现值累计等于0的折现率称为（）。
A.净现值率
B.投资收益率
C.财务内部收益率
D.财务净现值
参考答案：C
根据句意及所给的汉语提示，写出单词或短语的正确形式。
1. "I've ______ (长大). I can help with some housework." she said to her parents.
2. Please ______ (打开) the lights, it's too dark.
3. Our government has made several ______ (法律) to protect children.
4. If you keep ______ (表扬) him, he won't know who he is.
5. Knowing how to ask for information ______ (有礼貌的) is very important and necessary.
国家公务员职业道德约束形式有（）。
A.良心
B.纪律
C.法律
D.自律
