Networks resilience is vital for the survival of networks, and that the scale-free networks are fragile when confronted with selectivity attacks.

网络的抗攻击能力对于网络的生存性至关重要，而无标度网络面对选择性攻击时却显得异常脆弱。

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The mesoscale pores are benefit to the diffusion of larger molecules with low resistance, while the micro-scale pores can provide effective catalytic sites of small molecules with high selectivity.

介孔允许大分子进入孔道同时具有较小的扩散限制，微孔则作为小分子的吸附场所，使小分子能够很好的择型催化。

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It is important to note that I ranked each college based on its 75th percentile SAT scores for math and critical reading (1600 scale) to assess selectivity.

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