“数论”的研究对信息安全很重要。
参考答案:对
尿频阴虚内热证的治法是()
A.甘温除热
B.益气养阴
C.滋阴清热
D.清热解毒
E.清热利湿
Cats are __________ a kind of pet. They can do much good to their masters.[ ]
A. more than
B. not more than
C. more
D. better