释义 |
- abbr.国防通信局(Defense Communications Agency);民航局(Department of Civil Aviation)
- 1
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。 - 2
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。 - 3
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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