问题
选择题
You know, ______ knowledge of _____ computer is necessary to a secretary(秘书).[ ]
A. a; /
B. the；the
C. the; /
D. a; a
答案
答案：A
搜题请搜索小程序“爱下问搜题”
You know, ______ knowledge of _____ computer is necessary to a secretary(秘书).[ ]
A. a; /
B. the；the
C. the; /
D. a; a
答案：A
，若，f（x）在点x=1处连续而且可导，则k的值是：（）