无法表明的

Many studies suggest that the pessimist's feeling of helplessness undermines the body's natural defenses, the immune system. Research has found that the pessimist doesn't take good care of himself. Feeling passive and unable to dodge life's blows, he expects ill health and other misfortunes, no matter what he does. He munches on junk food, avvoids exercis, ignores the doctor, has another drink.

许多研究表明，悲观者的无助感会破坏其身体的自然防御体系，即免疫体系；他们无法照顾好自己；消极被动，禁不住生活的风雨，不论做什么，他都会担心身体不好或者会有其他不幸；他还会吞吃垃圾食品，拒绝锻炼，不听信于医生，一再放纵酗酒。

Sequence analysis and homology searches of public data bases, however, revealed no published sequences significantly similar to the sequence of the fragment, precluding a predicition of the potential function of the sequence.

但DNA序列分析和数据库检索表明，该片段与迄今发表的核酸序列均不存在显著的同源性，因此尚无法预测其潜在的功能性。

Field app lication shows that the sys2tem resolves the p roblem of testing impact deceleration dynamically, and realizes the automation of the testing p rocess, reduces er2rors and imp roves the reliability of the test results.

现场应用表明该系统解决了目前冲击减速度无法动态测试的问题，而且实现了测试过程的自动化，减小了误差，提高了测试结果的可靠性。

The polymerization of preparing PDA could be impacted by allyl chloride, allyl alcohol and allyl aldehyde. The content of allyl chloride, allyl alcohol and allyl aldehyde in the DMDAAC monomer solution varied from 0mg/kg to 1000mg/kg, their intrinsic viscosity of PDA descended from 10.3dL/g to 8.0dL/g, 6.8dL/g and 8.8dL/g respectively. The polymerization of preparing PDA could be carried out well in the case the content of NaCl, active carbon, yellow residua and low molecular polymer of DMDAAC were less than 10000mg/kg, 1000mg/kg, 1000mg/kg and 50000mg/kg respectively.

单一杂质含量变化对聚合产物PDA特征粘度影响的研究结果表明：在DMDAAC单体溶液聚合反应过程中，当Fe~(3+)、Fe~(2+)和Cu~(2+)含量分别达到7mg／kg、9mg／kg和5mg／kg时无法得到聚合产物PDA胶体；当烯丙基氯、烯丙醇、烯丙醛含量分别从0mg／kg增加到1000mg／kg时，聚合产物PDA的特征粘度从10.3dL／g分别下降到8.0dL／g，6.8dL／g和8.8dL／g；活性炭和黄色物质含量在1000mg／kg以下，低聚物含量在50000mg／kg以下以及氯化钠含量在10000mg／kg以下时产物PDA的特征粘度降低变化量不超过0.2dL／g。

Through coupling of computational car course 5 rank the Li Dai of the model is counted, got Li Dai counts the verdict of full order, make clear 5 rank the system that the model is strong coupling of course of a car, alternate through coordinate the system cannot solve Ou only.

通过计算车轨耦合五阶模型的李代数，得到了李代数满秩的结论，表明五阶模型是一个车轨强耦合的系统，仅通过坐标变换系统无法解耦。

Also showed that the viscosity of agate strong, so that glaze in the air within the carcass, in the firing process can not normally overflow, more closed in the glaze of the lower deck; sesame sticks nail glaze met:.

同时表明，玛瑙的粘度很强，以致釉内与胎体中的空气，在烧制过程中无法正常溢出，较多的被封闭在釉的下层；芝麻支钉釉满足：。

Estimating with precision the scale of such in-migration is impossible. Official statistics indicate an urban working migrant population of more than 90 million, but the true number may be as high as 150 million.

这表明政府认识到仅仅依靠将农村人口迁移到城市无法解决农村的经济和社会问题，城市化发展应辅以加强农村基础设施的改善，尤其是改善压力沉重的农民的经济和福利条件。

The same process on XX stem cells did not work, which seems to suggest that the male of the human species is not yet wholly superfluous.

同样的步骤尚无法培育出自带XX染色体的干细胞，这似乎表明，男性尚未完全是多余的。

The same process on XX stem cells did not work, which seems to suggest that the male of the human species is not yet wholly superfluous.

同样的步骤尚无法培育出自带XX染色体的干细胞，这似乎表明，男性尚未完是多余的

The direct electrochemical behaviors of horse radish peroxide on the bare glassy carbon electrode and the ODA-HMS PVA membrane modified electrode were studied, respectively.

实验结果表明：HRP在裸玻碳电极上和滴涂法所制备ODA-HMS聚乙烯醇凝胶膜中的直接电化学行为较差，只呈现一不可逆的还原峰，且峰电流随着扫描次数的增加不断减小，无法达到稳定。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。