She made him smoking. [ ]
A. to give up
B. give up
C. gives up
D. giving up
答案:B
如果字符B的ASCII码的二进制数是1000010,那么字符F对应的ASCII码的十六进制数为______。
A.37
B.46
C.65
D.75
原核生物乳糖操纵子学说