（）是旅游主体和旅游客体的纽带。
A.旅游资源
B.旅游者
C.旅游业
参考答案：C
He is dishonest. _____, he always tells lies to others. [ ]
A. After all
B. As well as
C. In other words
D. A.B and C
软膜中不包括（）面膜。
A.粉状
B.片状
C.膏状
D.胶状
