您要查找的是不是：
- Stroke, a worldwide common disease with high incidence ratio, mortalit y ratio and mutiation ratio, is one of the most dangerous disease of humanbeing. 脑卒中在全球范围发病率高,具有较高的死亡率和致残率,严重威胁着人类的健康。
- Y is sometimes a vowel, as in bicycle. Y有时是元音字母，如在单字bicycle中。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- The motion (ie for debate) was proposed by Mr X and seconded by Mrs Y. 那动议经X先生提出有Y夫人附议。
- y ratio 射线比
- The vowels in the English alphabet are a, e, i, o, u, and, sometimes, y. 英语的元音字母有a，e，i，o，u，有时也包括y。
- We to ed the leak i the ga ipe y mea of lead. 我们用铅堵塞了煤气管上的漏洞。
- The product is the inner product of x and y. 这个乘积是向量x与y的内积。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- Adjoin two new vertices X and Y to N. 在N中添加两个新顶点X和Y。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Treat the problem in the X, Y, Z system. 在X、Y、Z座标系中处理问题。
- I had scarcely done cy homework before y mother. 我刚做完功课,母亲就进来了
- I enclose this leaflet for y our information. 我现附上一份传单供你参考。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- Knowing x to equal y ,we can solve this equation . 知道x等于y，我们就能解这个方程。
- I have appointment with company X,Y,and Z today. 我今天与X，Y及Z公司有约会。
