下列歌谣中,不能反映民国初年社会新风尚的是
A.结婚证书当堂读,请个前辈来证婚
B.文明洋伞小包裹,长统洋袜短脚裤
C.辫子斜拖三尺短,之乎者也说雅长
D.改良的姑娘大脚丫
答案:C
乙烷跟氯气在光照下发生取代反应,得到乙烷的氯代产物最多有( )。
A.10种
B.9种
C.8种
D.7种
The place was flooded ________ it had been raining for several weeks.[ ]
A. because
B. because of
C. ever since
D. as a result of