猩红热首选治疗药物是()
A、青霉素
B、头孢唑啉
C、环丙沙星
D、红霉素
参考答案:A
She can't _____ an apple. [ ]
A. found
B. find
C. to find
除数是5,商和余数都是4,被除数是( )
A.20
B.16
C.24
D.25