若在地址栏输入C：\123\123.txt则（）。
A.打开123文件夹
B.打开123文本文档
C.弹出错误对话框
D.没有这种文件结构
参考答案：B
They will start their project, ________at helping the poor children to be educated in the west of China. [ ]
A. aims
B. aiming
C. being aimed
D. to aim
电位的大小与参考点有关。
