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。
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。
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。
Every individual starts with fitness 1 at point a and can raise its fitness based on how close it gets to point B. Every command "u", "d", "l", or "r" moves up, down, left, or right, respectively.
每个个体从a点开始，并且其适应性为1，然后个体可以根据它与b点的接近程度来增加它的适应性。命令“U”、“D”、“L”或“R”分别代表上移、下移、左移或右移。
A: Scientists have identified five unique hepatitis viruses, identified by the letters a, b, c, d, and E. While all cause liver disease, they vary in important ways.
答：科学家们已经识别出五种截然不同的肝炎病毒并以甲、乙、丙、丁、戊型作为辨识。虽然它们都会引起肝病，但在重要方面又有所不同。
Figure 3: Performance TAB shows you a letter grade (a, b, c, d, f) and a percent grade (1-100).
图3：性能标签使用字母(A,B,C,D,F)表示等级以及当前等级(1- 100)。
Scientists have identified five unique hepatitis viruses, identified by the letters A, B, C, D, and E. While all cause liver disease, they vary in important ways.
科学家们已经识别出五种截然不同的肝炎病毒并以甲、乙、丙、丁、戊型作为辨识。虽然它们都会引起肝病，但在重要方面又有所不同。
However, facts A, B, and C are never used again; they were instrumental to the argument because they allowed one to establish D, but once D is established, A, B, and C can be safely forgotten.
然而，A,B和C再也没有被使用到；他们只是辅助性的证明，因为它们被用来建立D，然而一旦D被建立起来后，A,B,C可以被毫无顾虑地忘掉。
The task executes when it receives business items A and B, or C and D, or B and C as inputs.
任务在接收到业务项A和B，或C 和D，或B 和 C作为输入时，该任务将执行。
D Because if I have equal amounts of a, B, c, and d, that's a lot of entropy of mixing there.
因为如果我们有等量的A,B,C和，那么混合熵会很大。
Task 4 has an input criterion requiring only business items A and B for the upper branch, while for the lower branch it has a separate criterion that includes business items A, B, and D.
Task4有一个输入条件，只需将业务项A和B 提供给上面的分支，而它针对下面分支的则是一个单独的条件，其中包含业务项 A、B 和D。
B: The hospital is quite a distance from here. If you don't have a car you? D.
医院离这里有相当一段距离，如果你没有车的话，最好是乘公共汽车。
That is even more expensive than it sounds, because each well produces only a small amount: perhaps 180 b/d, compared with as much as 7, 000 b/d from some Persian Gulf wells.
而这实际上比它听起来要昂贵的多，因为每个油井只能产很小一部分数量的石油：大约180桶／天，而与之相比，波斯湾的油井的日产量为7000桶／天。
CrashMetrics ticks all the important boxes: a accuracy, b correct level of mathematics, c understandability, d robustness, e flexibility, f ease of use.
CrashMetrics符合下列一切要求：a准确，b正确的量化程度，c易理解，d稳定，e灵活，f易用。
Milk contains essential nutrients like Calcium, Potassium, Protein, Vitamins a, B-12, d, Niacin, Phosphorus and Riboflavin.
牛奶含有的基本营养素有钙，钾，蛋白质，维生素a、B12、D，烟酸，磷，核黄素等。
These include pre- and post-increment/decrement ( i++, --foo ), add/sub/mult/div assign operators ( a+=3, b*=2, c/=2.2, d-=6.2 ).
其中包括前后加/减（i++、--foo）， 加减乘除赋值运算符（a+=3、b*=2、c/=2.2、d-=6.2）。
"The claim," he writes, "was made relative to the (a) share of (b) mobile platforms (c) installed base (d) in the US."
“这种说法，”他写道，“是基于(1)份额；(2)移动平台；(3)装机量；(4)在美国。”
Once you created a 'd', this could work fine as a starting point for a 'b' and a 'p', by rotating the 'd' 180 degrees.
当你完成了一个“d”，你就可以把这个“d”旋转180度，以此为基础完成“b”和“p”的制作。
D o 'b: Merlin and I have a couple of mini-projects that should see the light of day soon. And it's always fun to see what's happening in this field.
DO'B：Merlin和我有很多微小的项目即将面世了，而且看着这个领域里正在发生的一切是那样的快乐。
Is it: a Greek, B Phoenician, c Sumerian or D Latin?
是A希腊语b腓尼基语c苏美尔语还是d拉丁语？
Average extractions costs there will increase from just over $12 a barrel in 2011 to more than $15 in 2035, as production increases by more than 17m b/d.
随着每天增加1700万桶产量，平均炼油成本从2011年的12美元每桶上升到2035年的超过15美元每桶。
Oil production, now 350, 000 barrels a day (b/d), is reviving faster than expected.
目前的石油产出量是每天35万桶，比原本的预计更多。
Add some low-fat cheese to round out a side dish with immune-enhancing B vitamins and vitamin d.
烹饪的时候加点低脂奶酪，还能补充维生素b和维生素d。
The International Energy Agency (IEA) reckons that around 1m b/d has stopped flowing as a result of fighting that shows no signs of abating.
据国际能源总署推测，随着内战不断进行，且没有消退的迹象，每天已经约有100万桶停止流动。
The newspaper identified them as a Somali-born German, Omar D. and a Somali citizen, Abdirazak b.
报纸证实他们是索马里裔德国人Omard和索马里人abdirazak b。
Saudi Arabia increased oil production by 700, 000 barrels a day last month, to reach a total of 9.7m b/d, according to the International Energy Agency.
据国际能源署称，上个月沙特阿拉伯把每天的产油量增加到了每天70万桶，达到了9.7mb/d。
In Section 2, facts A, B, and C are derived, and then used to deduce D.
第二小节中的事实A,B,C被推导出来，并用于证明D。
Saudi Arabia has only offered to boost its output by 200,000 barrels a day (b/d), about 0.2% of the world’s current consumption of 87m b/d.
第一沙特承诺增加的产量为20万桶/天（b/d）,大约只占全球每天消费量8700万桶的0.2%。
Saudi Arabia has only offered to boost its output by 200, 000 barrels a day (b/d), about 0.2% of the world’s current consumption of 87m b/d.
第一沙特承诺增加的产量为20万桶/天（b/d）,大约只占全球每天消费量8700万桶的0.2%。
Saudi Arabia has only offered to boost its output by 200, 000 barrels a day (b/d), about 0.2% of the world’s current consumption of 87m b/d.
第一沙特承诺增加的产量为20万桶/天（b/d）,大约只占全球每天消费量8700万桶的0.2%。
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