较易引起肝损害的药物是()。
A.庆大霉素
B.阿莫西林
C.无味红霉素
D.头孢氨苄
参考答案:C
You cannot predict everything. Often things don’t _____ as you expect .
A.run out
B.break out
C.work out
D.put out
课堂内存在的各种群体,会对个体的行为产生巨大的影响。 ( )