The nurse is teaching a group of patient-care attendants about infection-control measures. The nurse tells the group that the first line of intervention for preventing the spread of infection is （）.

A．wearing gloves.

B．administering antibiotics.

C．washing hands.

D．assigning private rooms for clients.

"似与不似之间"是现代画家（）提出的绘画理论。

A.吴道子

B.徐悲鸿

C.齐白石

D.张萱