In 1960, only 15 percent of grades were in the "a" range, but now the rate is 43 percent, making "a" the most common grade by far.

1960年，只有15%的成绩属于“A”的范围，而现在的比例是43%，使“A”成为远高于其他分数的最常见成绩。

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The most common grade 3 toxicities associated with immunotherapy were reported as pain (21%), vascular leak syndrome (7.3%), and allergic reactions (7.2%).

报道的与免疫治疗有关的最普遍的3级毒性反应为疼痛(21%)，血管渗漏综合症(7.3%)，和过敏反应(7.2%)。

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The system administrator using hierarchical management, management staff will be divided into senior, intermediate, common grade 3, have different powers, duties well, in order to improve efficiency.

本系统采用管理员等级制管理，将管理人员分为高级、中级、普通三个等级，分别拥有不同的权限，各司其职，以便提高工作效率。

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Have wines actually gotten that much better, or has grade inflation become as common among wine critics as it has among high-school personnel?

WSJ: Wine Ratings: Remaking the Grade | On Wine by Lettie Teague

The mix of your investments should include publicly traded fixed income and equity assets such as investment grade bonds, preferred stock and common stock.

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"CDO" is a common term for collateralized debt obligation, an investment-grade security backed by a pool of bonds, loans and other assets.

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