虽然生产物流也创造空间效用,时间效用,但那是为()服务的。
A.人类
B.供应
C.生产
D.社会
参考答案:C
In my opinion we should never speak to them like that___our parents said something wrong
to us .
A even if B so that C as if D ever since
急性脊髓炎患者多种标本中均可存在病毒,病毒存在时间最长的是()
A.鼻咽部
B.血
C.脑脊液
D.粪便
E.尿液