色彩的明度最低的是()。
A.红色
B.黄色
C.紫色
D.绿色
参考答案:C
Large quantities of water , as well as some other timely help including a medical team, _____ since the serious drought hit Yunnan Province.
A.has offered
B.had been offered
C.have been offered
D.is offered
法国重农学派思想体系的主要特点是什么?