引起水痘的病原体是（）

A.水痘病毒

B.带状疱疹病毒

C.EB病毒

D.水痘-带状疱疹病毒

E.单纯疱疹病毒

The university student borrowed some money _____his friends to start his own business.

A．from

B．onto

C．at

D．in