A:乙醇
B:丙醇
C:丁醇
D:甲醇
Jim______ sing Chinese songs very well now, but he______do it last year.
简述我国的基本经济制度。结合材料请你谈谈对这一经济制度的认识。
袋鼠的前肢短,后肢长,这与它的( )运动方式相适应。
—What's the date today?
—May 15th.