A. 对 B. 错
A. fp=fopen("my.txt","r") B. fp=fopen("my.txt","rb") C. fp=fopen("my.txt","wb") D. fp=fopen("my.txt","w")
A. 3.141500,12 B. 3.141500,12141500 C. 3.141500,3 D. 3.141500,123
A. file.txt B. How are you! C. How are you!Fine, thank you! D. Fine, thank you!