Culture shock is a feeling____ most travellers experience in a foreign country____ they find the

culture is quite different from that of their own. [ ]

A. that; which

B. which; that

C. which; where

D. when; where

通过血液传播的微生物是

A．脊髓灰质炎病毒

B．甲型肝炎病毒

C．乙型肝炎病毒

D．麻疹病毒

E．轮状病毒