Timmy goes to school __________ every day . It’s 5 minutes’ walk from his home to school .

A．in a bus

B．by MTR

C．on foot

D．by tram

麻疹确诊的依据是（）

A.发热伴上呼吸道卡他症状

B.流行季节，有麻疹的接触史

C.病程第5天血清抗麻疹抗体阳性

D.血白细胞数减少

E.眼、鼻分泌物测定抗麻疹抗原阳性