一位美国历史学家这样总结道:在欧洲的海外扩张中,最重要的人物不是哥伦布、达·伽马、麦哲伦,而是那些拥有资本的企业家。对这一观点解释最恰当的是( )
A:否认了航海家们的贡献
B:突显了企业家们的作用
C:企业家为航海活动提供了物质支持
D:资本的发展和需要是海外扩张的动因
Sue was so _______ her holiday that she couldn't stop talking about it.
59 - 18 = 13 + 23 = 0.25+ 74 = 112 - 38 - 58 =
43 + 12 = 1- 35 = 0.875- 12 = 437 - 37 + 18 =
17 + 16 = 12 - 15 = 56 - 29 = 12 + 115 =