下列化学式书写错误的是[ ]
A.氧化铝A12O3
B.氢氧化钾KOH
C.氯化钙CaCl
D.硝酸HNO3
答案:C
--- Is your sister as serious as you?
--- No, she isn’t. She is .
A.as friendly as me
B.more serious than me
C.as tall as me
D.friendly than me
3G的USIM卡容量为()
A.64K
B.128K
C.256K