有缺点

She has many shortcomings, but we are all fond of her.

她有许多缺点，但我们都喜欢她。

Even though it is useful, but there are a few weaknesses.

即使是有益的，但是有几个缺点。

And what do you see as your weaknesses?

那么你觉得你有什么缺点吗？

The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.

论文价格：30元，程序价格：30元全套价格：原价60元，会员价50元摘要试卷生成的管理，特别是学校的试卷生成具有量大、种类多的特点，常规管理有工作量大、查询困难、不易更新的缺点，试卷生成管理系统可对试题实行科学的管理，利用现代电脑功能强大、运算速度快的优点，对试题进行集中、有序、有效的管理，更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷，大大降低了劳动强度，需用密码登录系统，具有一定的安全性。

The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.

该套毕业设计包括：论文+程序+开题报告+PPT，若想看更详细的资料介绍，请联系 QQ：49016366摘要试卷生成的管理，特别是学校的试卷生成具有量大、种类多的特点，常规管理有工作量大、查询困难、不易更新的缺点，试卷生成管理系统可对试题实行科学的管理，利用现代电脑功能强大、运算速度快的优点，对试题进行集中、有序、有效的管理，更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷，大大降低了劳动强度，需用密码登录系统，具有一定的安全性。

The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.

论文 字数：12970页数：48 带程序）摘要：试卷生成的管理，特别是学校的试卷生成具有量大、种类多的特点，常规管理有工作量大、查询困难、不易更新的缺点，试卷生成管理系统可对试题实行科学的管理，利用现代电脑功能强大、运算速度快的优点，对试题进行集中、有序、有效的管理，更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷，大大降低镣动强度，需用密码登录系统，具有一定的安全性。关键词：分析，设计，测试，试卷生成系统，调试，查询，打包

Results show that digital simulation with the method features rapid model establishment, significant reduction of node and unit numbers, low calculation cost and accurate results. At the same time, defect that the stress distribution on composing plate and reinforced plate of the hoist boom can be reflected in finite element model by this method is pointed out All these provides valuable reference for the design and manufacture of hoist booms.

结果表明：用此方法进行数值模拟，建模速度快，节点及单元数大大减少，节约了计算成本，结果准确；同时指出这种方法建立有限元模型不能反映吊臂组成板和加强板应力分布的缺点，可为吊臂的设计制造提供有价值的参考。

Gate of shortcomings:(1) easy to damage the sealing when the damper open and close the valve seat in contact with the two relative friction between the seal and easy to damage, which affects seals with the life and maintenance more difficult.

闸阀的缺点：(1)密封面易损伤启闭时闸板与阀座相接触的两密封而之间有相对摩擦，易损伤，影响密封件能与使用寿命，维修比较困难。

Gate of shortcomings:(1) easy to damage the sealing surface when the damper open and close the valve seat in contact with the two relative friction between the seal and easy to damage, which affects seals with the life and maintenance more difficult.

闸阀的缺点：(1)密封面易损伤启闭时闸板与阀座相接触的两密封而之间有相对摩擦，易损伤，影响密封件能与使用寿命，维修比较困难。

But it has some shortcomings. Connecting weld of doubler strake is directly welded on plating strengthened, in this way welding fluid fuse with plating strengthened such as deck plating or bottom plating, and then connecting of doubler strake fuse with deck plating or bottom plating strengthen. So breakage like crack of connecting of doubler strake may immediately destroy deck plating or bottom plating strengthened, which became of navigational accident.

但是，增设复板条来提高船舶总纵强度的方法有其缺点，每段复板条之间的对接焊缝是直接在被加强的板上施焊，焊缝就会溶入被加强的甲板或船底板，使得复板条对接接头与被加强的甲板或船底板发生粘连，这样，复板条对接接头的开裂等破坏就会直接引起船舶被加强的甲板或船底板的破坏，从而导致海难事故。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。