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。
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。
Perform steps b through d for each project, then all files will be uploaded to the CVS repository, and the sample application will be available for check out by the continuous integration server.
对每个项目执行步骤b至d，然后所有文件将被上载到CVS存储库，并且该示例应用程序可供持续集成服务器签出。
Oil production from Daqing peaked at about 1.1m barrels per day (b/d) in 1997.
大庆的石油产量在1997年达到峰值——每天110万桶（b/d）。
The suitability of carrying out D-B model in our country now is discussed.
针对我国的实际情况，分析该模式在工程建设中的适用范围。
Due to the difficulty of FDTD dealing with the dispersive material, this paper use the D-B method instead of E-H method, which is more suitable for dealing with dispersive material.
针对普通FDTD处理色散媒质的困难，本文通过D - B场量的迭代方法代替传统e - H场量的迭代方法，可以很方便的处理色散媒质。
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。
Eggs contain all the essential amino acids and are an excellent source of protein, not to mention B-vitamins, vitamins a and d, zinc and iron.
鸡蛋包含所有基本的氨基酸，是极佳的蛋白质来源，更不用说维他命b，维他命a和d，锌和铁。
The Saudis are set to pump an extra 700,000 b/d and Kuwait, Nigeria and the United Arab Emirates may add another 300,000 b/d.
沙特准备增加700 000桶日产量；科威特、尼日利亚和阿联酋也可以增加300 000桶。
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%。
World demand grew by an extraordinary 2.7m b/d in 2010, according to the International Energy Agency.
依照世界能源署的数据，2010年里世界的需求每日额外增加270万桶。
The shutdowns bring the total volume lost so far to at least 350,000 b/d, or about 22 per cent of Libya’s production and equal to Greece’s demand.
迄今为止，上述停产已导致利比亚的石油日产量下降了至少35万桶，相当于该国总产量的22%或整个希腊的需求。
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。
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）。
Of that, some 1m b/d is sold at subsidised prices at home or to regional allies, leaving just 1.25m b/d for full-price exports.
还有，每日约100万桶石油在国内或区域联盟国中以优惠价格卖出，因此每日只剩下125万桶石油是以全价出口。
That should rise to 1m b/d within four or five months, he says, reaching pre-war levels of 1.6m late next year.
他还说，产量应在四至五个月内达到每天100万桶，明年年底达到战前每天160万桶的水平。
Three other types of airspace, Classes D, C and B, govern the vicinity of airports.
其他三种领空，D、C和B类，管理着机场周围地区。
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。
Theodore and Franklin D. Roosevelt, William Howard Taft, Dwight D. Eisenhower, Lyndon B. Johnson, Gerald Ford, and George H. W. Bush all had offices in this building before becoming president.
西奥多、富兰克林·罗斯福、威廉·霍华德·塔夫脱、德怀特·艾森豪威尔、林登·约翰逊、杰拉尔德·福特和乔治·布什在成为总统之前，都曾在这座大楼里就职。
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。
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。
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。
In May OPEC pumped 29m barrels a day (b/d) of oil (including Iran, which is not in the quota system) whereas official quotas, last formally changed in 2007, stand at 24.8m b/d.
五月份，欧佩克日产石油为2900万桶（其中也包括了伊朗的产量，但该国不参与石油配额机制），而官方配额上次在2007年正式调整后一直保持在日产量在2480万桶。
The IEA reckons that OPEC has no more than 2m barrels per day (b/d) of spare capacity—just over 2% of global demand.
IEA估计欧佩克的剩余产油能力不多于每天200万桶—这仅仅是全球需求总量的2% 。
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 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。
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