Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.

当时的大多数教师认为这种新的字母评分制度是一种用来给学生打分的简单、公平、明确的方式。

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Another part of the assignment that was easy to grade was the requirement that they provide JUnit tests that cover all of their code.

作业中容易评分的另一部分是他们提供的覆盖所有代码的JUnit测试的需求。

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With this in mind it is easy to understand why we often have a deficit in aircraft grade lumber.

考虑到这一点很容易理解为什么我们经常在飞机级木材赤字。

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In an exhaustive review of all studies published through June 2012, "it has become clear there is no easy way to grade a concussion and no set timeline for a return to play" says Christopher C.

WSJ: Tougher Rules Advised for Athletes After Concussion

This is also where many institutional investors have focused their attention, because the emerging market sovereign bonds are closer substitutes for investment grade bonds here in the US. As the Fed has crowded people out of the US investment grade space, they have moved to emerging market sovereign bonds as an easy substitute.

FORBES: 5 Ways to Increase Profits From an Emerging Markets Bond Pro