In the A, B, C, D and F grading system, the first four letters are typically considered passing grades.

在 A、B、C、D 和 F 评分体系中，前四个字母通常被认为是及格。

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After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.

听到问题后，必须从A、B、C、D四个选项中选出最佳选项。

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For each of them there are four choices marked A, B, C and D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

每题都有对应标记的A、B、C和D四个选项，请选择最佳选项并在答题卡2的相应字母中间划横线。

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We would like to hear from you. Write to us at Special English, Voice of America, Washington,D.C., two-zero-two-three-seven,U.S.A.

VOA: special.2009.03.10

So, we start on C and then we go up to D-- a whole step.

我们从C开始,然后上升到D,一个全音级

耶鲁公开课 - 聆听音乐课程节选

I personally don't like swings that much and it's the B-/B+ range, so I'd much rather prefer that to a swing from A to C, and that's my reason.

我不喜欢成绩波动很大的,比如B-/B+这个范围,所以我还是喜欢像A到C这样小点的,这就是我的原因

耶鲁公开课 - 博弈论课程节选

Gamers got a pair of spaceship shooters from Bethesda Softworks (Star Trek: Legacy) and Paramount Digital Entertainment (Star Trek: D-A-C) before Cryptic Studios launched Star Trek Online in 2010.

FORBES: Star Trek Into Darkness Weak $84 Million Domestic Box Office Follows Paramount Video Game Flop

Ironically, the Star Trek D-A-C downloadable PC and console game from the first film ended up scoring higher across the board on Metacritic (50 PC, 53 Xbox Live) than the much more expensive shooter that had such promise.

FORBES: Star Trek Into Darkness Weak $84 Million Domestic Box Office Follows Paramount Video Game Flop

The 1-10 system has no become equivalent to the scoring system of most schools. 90-100 is an A, 80-89 a B, 70-79 a C 60-69 a D and below that a failing grade.

FORBES: Why Video Games Should Adopt Film's Five Star Rating System