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。
There are a number of vitamins that are vital for good hair health, the main ones being vitamins C, D and E, and in a balanced diet all these vitamins should be readily available.
有许多对头发健康至关重要的维生素，主要有维生素C、D和E，而在平衡的饮食中所有这些维生素应该很容易获得。
That may change fast: lots of proposed date-security legislation is now doing the rounds in Washington, D. C.
这种情况可能很快就会改变：很多提议的信息安全法规正在华盛顿进行逐一讨论。
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。
Jeff Black, the chef and owner of BlackSalt seafood market and restaurant in Washington, D. C., is not so sure its that simple.
杰夫·布莱克是华盛顿·布莱克·索特海产品市场和餐馆的所有者及厨师，他不认为事情很简单。
Photo: a pair of sisters dressed as a grape and a carrot pass out plates to Senate staffers in Washington, D. C., with a message urging them to pass a nutrition bill.
图：华盛顿特区，一对身穿葡萄服和胡萝卜服的姐妹向参议员分发盘子以传递督促他们通过营养议案的信息。
The contents of paragraphs C and D would vary with the poem.
段C与段D的内容随诗歌而变。
In 2007, the O. e. C. D. reports, about 17 percent of the French were over 65, a relatively low figure for Western Europe.
经合组织2007年的报告指出，在法国大约17%年龄超过65岁的人，相比其他西欧国家较低。
Mineralogist Jeffrey Post of the Smithsonian Institution in Washington, D. C., agrees.
华盛顿特区史密森学会的矿物学家杰弗里·波斯特表示同意。
C. The Chinese Students at Oxford D. The University of Oxford.
本文介绍了牛津大学的历史，现状和大学生活。
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。
Since the sum b+c+d is a multiple of 5, and at least one of the terms is a multiple of 5, either only one is, or all are.
因为b+c+d所得是5的倍数，所以其中至少有一个数值是5的倍数，或者只有一个，或者三个都是。
Let them remember how they took to the streets on a warm, clear night in Boston or D. C. or Philly, even the small college town of Newark, Delaware.
让他们记得他们是如何在一个温暖，晴朗的夜晚走上波士顿，华盛顿或者费城，即使只是在特拉华州的纽瓦克市上的小小大学城。
Meanwhile, Washington, D. C. — where Congress is debating over whether to pass a climate bill — is getting a memorable preview of what new computer models are predicting.
同时华盛顿特区-国会正在争辩是否通过气候法案，针对新电脑模型所预测的资料进行审核，这审核将更具意义。
Enumerations and numeric ranges: For example, the value of a particular string attribute must be a, c, or D. Another example: the value of a particular numeric must be between 1 and 500.
枚举与数字范围：例如，某个特定字符串属性必须为A、c或者d。再比如，某个特定的数字必须在1至500之间。
When eighth graders from Longmont, Colorado's Altona Middle School left for the East Coast, they knew they'd be coming to see the White House and some of D. c.
科罗拉多州郎蒙特市阿尔托纳中学的八年级生们来到了东海岸，他们知道此行会见到白宫和华盛顿特区的一些闻名的纪念碑。
Occurring sequentially from top to bottom, within each iteration, r, d, c, and t represent some of the standard disciplines executed in each iteration (Requirements, Design, Code, and Test).
在每个迭代中从上到下顺序发生的R、D、c和t表示在每次迭代中执行的一些标准规程(需求、设计、代码和测试)。
When logging or general overhaul for long time, mud density must BE raised to E. C. D. for stable of hole.
在电测或长时间停钻检修设备时，将泥浆密度提高到循环时的当量泥浆密度范围。
Smokers get periodontal disease at two to three times the rate of nonsmokers, "says Sally Cram, DDS, a periodontist in Washington, D."C., and a consumer advisor for the American Dental Association.
“吸烟者牙周炎的患病率是非吸烟者的2到3倍”，SallyCram说。他是华盛顿特区的牙周病专家，也是美国牙齿美容协会的消费者顾问。
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。
At one such event near Washington, D. C. , the visitors tasted all kinds of chocolates and learned about the history of these sweet treats.
在华盛顿特区附近就在举行这样的庆祝活动，这里的游客们品尝着各种各样的巧克力并了解这些甜食的历史。
In 2016, a blizzard hit the Northeast U. S. it dropped record amounts of snow in many areas, including New York City and Washington, D. c.
2016年，一场暴风雪袭击了美国东北部，包括纽约市和华盛顿特区在内的很多地区都创下了降雪量记录。
In the summer of 1963, Clinton was invited to visit Washington D. C.
1963年的夏天，克林顿受邀参观首都华盛顿。
The whole thing thus boils down to solving 5c"+d'=54 and c"d'=144, which means that c" is solution of x(54-5x)=144 or 5x2-54x+144=0.
所有的事情都归结于解方程组5c"+d'=54,c"d'=144,即表示c''是x(54-5x)=144或 5x2-54x+144=0的解。
The whole thing thus boils down to solving 5c"+d'=54 and c"d'=144, which means that c" is solution of x(54-5x)=144 or 5x2-54x+144=0.
所有的事情都归结于解方程组5c"+d'=54,c"d'=144,即表示c''是x(54-5x)=144或 5x2-54x+144=0的解。
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