甲状腺弥漫性肿大,质地柔软,可触及震颤,听诊有血管杂音,应考虑( )
A. 甲状腺癌
B. 麻疹
C. 鹅口疮克
D. 弥漫性甲状腺肿伴甲亢
Watch the video clip on the previous page and do the True or False exercise .Railway transportation is the most suitable for short-distance transportation.
A. 对
B. 错
Relatively, the freight of air transportation is the most expensive.
A. 对
B. 错
Road transportation is the safest transportation.
A. 对
B. 错