1926年上半年，蒋介石先后制造的篡夺军权、党权的两大事件是制（）和（）。
参考答案：中山舰事件；整理党务案
_______ Switzerland is very small, _______ it is the land of watch and it is very rich. [ ]
A. Though; but
B. Because; so
C. Because; /
D. Though; /
