We all believe that hard-working can lead great success. [ ]
A. to
B. with
C. in
答案:A
假设某河流自西向东流,流水对北岸的侵蚀比南岸严重,而且在该地区一年中有两次太阳直射,则该河流所处的纬度可能是
A.20°N
B.20°S
C.30°N
D.30°S
农民依法承包的集体土地可用于从事()等经营活动。
A.种植业
B.林业
C.畜牧业
D.旅游业