干噫食臭
参考答案：
解析：噫同嗳，即嗳气中有不消化食物的酸馊腐败气味。
The companies are working together to create they hope will be the best means of transport in the 21st century.
A．which
B．that
C．what
D．who
反向曲线两超高顺坡终点间的夹直线长度不应短于（）。
A.20m
B.25m
C.40m
D.50m
