St. Petersburg, the very name brings to
mind some of Russia’s greatest poets, writers and composers: Pushkin,
Dostoevsky, Tchaikovsky. The 19th century was a golden age for St. Petersburg’s
wealthy classes. It was a world of ballets and balls, of art and literature, of
tea and caviar. The golden age ended with the advent of World War I. Working people were growing more and more discontented. In 1917, Communism came, promising peace and prosperity. St. Petersburg had become Petrograd in 1914. People wanted a Russian name for their city. Ten years later, the city’s name changed again, this A. optimistic. B. wavering. C. sceptical. D. unclear. [判断题]物体距离越远颜色越鲜明。
[单选题]工业建筑除尘系统中,分散除尘的特点为( )。
A.系统风管较长 B.布置复杂 C.系统压力易平衡 D.粉尘回收容易 [多项选择]女,37岁,突然心跳、呼吸停止送入医院,急行胸外心脏按压,气管插管人工呼吸。此时抢救用药途径错误的是
A. 静脉注射 B. 皮下注射 C. 气管内注射 D. 心内注射 E. 肌内注射 [多选题]光缆接续有哪些注意事项。( )
A.接续前应先测量光纤衰减,并作记录,以检查敷设时有无损伤光缆 B.光缆在接头盒内加强构件的处理和固定要严格按照操作规程,防止加强件固定不牢形成滑动位移 C.熔接后的光纤盘绕直径一般不小于60mm,光纤应松弛自然,不得扭折 D.接头盒的封装应按有关规范进行,保证封装后的光缆和接头盒固定部位不受拉伸应力和扭弯应力 [单选题]在肝内具有吞噬功能的细胞是( )
A.肝细胞 B.肝血窦内皮细胞 C.淋巴细胞 D.肝巨噬细胞 E.以上都不是 [单选题]发动机中曲柄连杆机构的功用是把燃烧气体作用在活塞顶上的力转变为()的转矩,并通过曲轴对外输出机械能。
A.连杆 B.飞轮 C.活塞 D.曲轴 [多选题]根据《中华人民共和国劳动合同法》,劳动合同终止的情形有()。
A.劳动合同期满的 B.女职工在孕期、产期、哺乳期的 C.劳动者死亡的 D.企业申请破产的 E.企业被吊销营业执照的 我来回答: 提交
|