下列各种植物,哪一种植物既有果皮包被的种子,叶又是网状脉( )
A.玉米
B.油松
C.向日葵
D.银杏
答案:C
将下列句子排列成一个完整的对话。
( )A. Yes, just only a little.
( )B. May I ask your name?
( )C. Do you often go to the English corner?
( )D. Sure. My name is Wang Ming.
( )E. Do you have any friends here?
( )F. Where is he from?
( )G. Can he speak Chinese?
( )H. He is from America.
( )I. Yes, Bill is my good friend.
( )J. Yes, I do.
甲、乙、丙三人同时从A向B跑,当甲跑到B时,乙离B还有20米,丙离B还有40米;当乙跑到B时,丙离B还有24米。问:A,B相距多少米( )
A.100
B.120
C.140
D.160