夜交藤的正名为()
A.槟榔
B.牛蒡子
C.首乌藤
D.重楼
E.大黄
参考答案:C
The teacher made____ her duty to care for the lives and study of her students.
A.one
B.that
C.it
D.this
软件生命周期中所花费用最多的阶段是
A.详细设计
B.软件编码
C.软件测试
D.软件维护