旅游纠纷按其性质可以划分为（ ）。
A．旅游民事纠纷
B．旅游经济纠纷
C．旅游行政纠纷
D．旅游刑事纠纷
参考答案：A,B,C,D
慢性盘状红斑狼疮的主要病理变化之一是
A．天疱疮细胞 B．棘层内袍 C．基层下疱 D．棘层萎缩变薄 E．固有层淋巴细胞浸润带
The matter __________ your fate can't be taken for granted. You have to think it over seriously.
A．relates to
B．related to
C．relate to
D．to relate to
