一瓶牛奶1.72元,48瓶大约多少元?
1.72×48≈83(元)
答:48瓶大约83元.
夏季病毒性脑炎的常见病因是
A.外感寒湿
B.外感湿热
C.感受温热毒邪
D.饮食不洁
E.感受暑湿
The price of the sweaters _____ $20. [ ]
A. is
B. are
C. have
D. has