向月的

Behaviorists , in contrast, say that differences in scores are due to the fact that blacks are often deprived of many of the educational and other vantages that whites enjoy.

相反，行为主义学者认为，成绩的差异是由于白人在教育及其他方面所享有的许多有利条件，而黑人则被剥夺了这些条件。

The nature reserve is the most effective way to protecting wild animals and plants, natural re-sources and ecosystem.

自然保护区是人类为保护野生动植物、自然资源和生态系统最有效的措施之一。