患急性肺炎时，血液中会明显增多的是[ ]
A．血浆
B．红细胞
C．白细胞
D．血小板
答案：C
—How much do you know about the Youth Olympic Games to be held in Nanjing?
—Well, the media ________ it in a variety of forms.
A．cover
B．will cover
C．have covered
D．covered
