皮皮学，免费搜题
登录
搜题
【单选题】
常数5的导数等于什么?A.
0
B.
5
C.
D.
c
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】根据以下材料，回答题 I once had a friend that was diagnosed with， terminal cancer， and the news that he might only live up to six months was a great shock to him， his family， and his friends.However， in spite o...
A.
Satisfied.
B.
Surprised.
C.
Terrified.
D.
Confused.