用来衡量桥梁结构整体刚度的主要指标是（）。

[单选题]The Ancient Greek philosopher Pythagoras is best known today for his mathematical theorem,which haunts the dreams of many geometry students, but for centuries he was also celebrated as the father of vegetarianism.A meatless diet was referred to as a"Pythagorean diet" for years, up until the modern vegetarian movement began in the mid-1800s. While Pythagoras was an early proponent of a meatless diet, humans have been vegetarians since well before recorded history.Most anthropologists agree that early humans would have eaten a predominantly plant-based diet; after all, plants can't run away.Additionally, our digestive systems resemble those of herbivores closer than carnivorous animals.Prehistoric man ate meat, of course,but plants formed the basis of his diet. Pythagoras and his many followers practiced vegetarianism for several reasons, mainly due to religious and ethical objections.Pythagoras believed all living beings had souls.Animals were no exception, so meat and fish were banished from his table.Strangely enough, he also banished a vegetable that has a place of honor on most vegetarian menus today, the bean.His followers were forbidden to eat or even touch beans, because he thought beans and humans were created from the same material.Fava beans were especially bad, as they have hollow steams that could allow the souls of the dead to travel up from the soil into the growing beans. While the edict against beans was lifted not long after Pythagoras' death, his followers continued to eat a meatless diet.His principles influenced generations of academics and religious thinkers, and it was a group of these like-minded individuals who founded the Vegetarian Society in English in the mid-1800s.The virtues of temperance, abstinence and self-control were all tied to vegetarian Ideals, while lust, drunkenness and general hooliganism all resulted from a diet too rich in meat products.Notable early vegetarians included Leo Tolstoy, George Bernard Shaw, Mahatma Gandhi and American Bronson Alcott, a Transcendentalist teacher, reformer and the father of"Little Women" author Louisa May Alcott. It wasn't until the 1960s that vegetarianism moved into mainstream American life and the movement's growth picked up speed in the 1970s when a young graduate student -named Francis Moore Lappe wrote a book called Diet for a Small Planet.In it, she advocated a meatless diet not for ethical or moral reasons, but because plant-based foods have much less impact on the environment than meat does.Today, many vegetarians refuse meat because of animal rights issues,or concerns over animal treatment, a principle first espoused in Peter Singer's 1975 work Animal Liberation.What issue were vegetarians in the mid-1800s in England primary reason with when refusing to eat meat?

[单选题]下列有关识别、评估和应对重大错报风险的说法中，错误的是（）

[多选题]报文交换的缺点为（）

[单选题]女性，24岁，冬季在室内煤炉取暖。次日清晨家人发现己昏迷，小便失禁，急送当地医院抢救。检查发现：HR135次／分，BP135／84mmHg，R7次／分，SaO262％。对该病人的抢救处理，下列哪项是错误的（）

[单选题]开展老年人中医体质辨识工作的人员应当是（）

[单选题]肌张力有较明显的增加，通过ROM大部分时，阻力均较明显增加，但受累部分仍能较容易的移动，以上描述按照改良的Ashworth痉挛评定量表属于几级（）

[判断题]监护操作时，其中一人对设备较为熟悉者作监护。特别重要和复杂的倒闸操作，由熟练的运行人员操作，运行值班负责人监护。

[单选题]根据《中华人民共和国环境影响评价法》，下列叙述正确的是（）。

[多选题]税收票证包括（）等。

[填空题]大型蒸发器在蒸发桶的外围装置水圈的目的是（）对蒸发的影响。

[单选题]用来衡量桥梁结构整体刚度的主要指标是（）。

[单选题]用来衡量桥梁结构整体刚度的主要指标是（）。

[填空题]桥跨结构是桥梁的（）结构。

[填空题]桥跨结构是桥梁的（）结构。

[填空题]桥跨结构是桥梁的（）结构。

[填空题]桥跨结构是桥梁的（）结构。

[单选题]桥跨结构为桥梁的（　）。

[多选题]下列（）是桥梁的下部分结构。

[单选题]桥梁钢结构主要是指（）。

[单选题]桥梁钢结构主要是指（）。