必须

Research on hand shows that the genus of an secure hyperelliptic curve should be small and the cardinality of its Jacobian group should contain a 160bit big prime factor at least.

现有的研究表明，用于构造密码体制的超椭圆曲线必须是低亏格的，且它的Jacobian基数中必须至少含有一个160bit的大素因子。

One has to be careful of using vitamin A in the cat for 2 reasons: first the cat can't absorb or convert well the beta-carotene forms (i.e. those found in plant foods), so s must be given in the form of liver or fish oil, secondly, vitamin A shouldn't be used for more than 6 weeks or there is a risk of hypervitaminosis A and excessive bone deposition.

给予猫咪维他命A必须要小心，因为两个原因：第一，猫咪不能吸收或完整转换beat葫萝卜素型的维他命A，所以必须给予肝脏或鱼油型的。

Advance Preparation Experts and organizations have emphasized the importance of advance preparation.4,18,26 Medical centers must review whether performance of an emergency hysterotomy is feasible at their center, and if so, they must identify the best means of rapidly accomplishing this procedure.

预案 许多专家和医疗组织都强调预案的重要性，医疗中心必须客观评估是否具有行急诊剖宫产能力，如果施行了剖宫产，他们必须选择最佳方法尽快完成手术。

I had to let it happen, I had to change

我必须去做，我必须去改变

Ian: I have to tell you this and you need to hear it.

我必须告诉你，你也必须听。

First, App IDs need to be based on domain names and second they need to end in .

首先，应用程序的ID必须是基于域名和第二，他们必须结束在。

You have to enter the false image to be able to point out the truth of the system.

为了展示这个天真道德之上的世界，就必须进行媒体短路的制作程序的试验，就必须进入到谎言的图像内部揭示体制的真相。

Therefore author think that corporations should make persistent change though it has outstanding and in favorable environment. Fist, Built up changing is the only immovability in mind, convey the thought to your staffs all the time because they will hard to give up bad customs and culture when they have acquired to it. Second, constant communicating. You should know what your customers think, concern the change of market, keep market feeling, make these changes to be corporation developing power. At last, you should listen to your staffs carefully when they have opinions, deal with their opinions carefully, to make these to be the chance to make innovation.

因此，笔者认为，在企业业绩很好，市场环境也非常有利的环境下，企业一定要进行持续的变革，首先必须是思想上的，必须要树立"变才是唯一不变"的思想，要始终传达这样的理念给全体员工，一旦懈怠下来，可能就会落后，养成不良的文化和习惯，是非常难以改掉的；其次，一定要加强沟通，不断聆听客户的心声，关注市场变化，保持对市场的敏感性，把这样的变化作为变革的动力；再者，一定要耐心聆听员工意见，认真处理这些意见，把这样的意见作为变革的契机。

Such impartation should meet the requirements of the knowledge and information society,should adapt to the reality in present teaching of Chinese,and should help students to cultivate good habits in the study of Chinese.

这种指导必须适应知识社会、信息社会的新特点、新要求，必须适应当前语文教学和学生的实际情况，并在此基础上，使学生养成语文学习的良好的习惯。

Its historic enlighten is: 1、we must clear up the basic problem of "what is a socialism, how developments socialism"; 2、we must enhance the party's system developments and insist the democracy concentration the system principle; 3、it is an impassability that politics considerations make the economy; 4、we must moderate the development the relation of the industry and agriculture, increase farmer's income and life level, with artificial this.

其历史启示是：1、必须弄清楚"什么是社会主义，怎样建设社会主义"这个根本问题；2、必须加强党的制度建设，坚持民主集中制原则；3、政治挂帅搞经济是行不通的；4、协调工农业发展关系，提高农民收入及生活水平，以人为本。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。