物业管理信息系统是专用于物业管理的一套事务处理（）。 A.硬件 B.软件 C.文件

Alfred Nobel, the great Swedish inventor and industrialist, was born in Stockholm on October 21,1833,but moved to Russia with his parents in 1842, where his father ,Immanuel, made a strong position for himself in the engineering industry. Immanuel Nobel invented landmine and made a lot of money from the government during the Crimean War, but went bankrupt soon after. Then , the family returned to Sweden in 1859, where Alfred began his own study of explosives in his father’s lab. He had never been to school or university but had taught himself, and by the time he was twenty, he became a skillful chemist and excellent linguist, speaking Swedish, Russian, German, French and English. He built up over 80 companies in 20 different countries. He was always searching for a meaning to life. He spent much time and money working on how to end the wars, and keep the peace between nations, until his death in Italy in 1896. His famous last will, in which he left money to provide prizes for outstanding work in physics, chemistry, physiology, medicine, literature and peace, is a memorial to his interests and ideas. And so, the man is remembered and respected long after his death.

小题1:Alfred Nobel, ,the great Swedish inventor, was born in Stockholm on ____________ 21,1833.

小题2:During the Crimean War, Immanuel Nobel invented _____________.

小题3:Nobel had never been to ____________ or university.

小题4:Nobel built up over ______________ companies in 20 different countries.

小题5: When Nobel was died, he was ____________ years old.

地方性统计法规不得与统计法律相抵触，但可以根据本地实际情况，突破统计行政法规的规定。（）

王小聪同学的家住于新农村建设示范村里，他父亲年前拉回了一套液化石油气灶具．液化石油气热值为3.5×10⁷J／kg，燃烧放出的热量只有60％被水吸收．将质量为5kg、初温为20℃的水加热到100℃，水吸热 _________ J，需燃烧液化石油气 _________ g。水的比热容c_水=4.2×10³J／（kg·℃）．

ACEI抗慢性充血性心力衰竭的药理作用错误的是（）

A.降低血管紧张素Ⅱ的生成

B.降低血管阻力

C.抑制心肌肥厚

D.增加缓激肽的降解

E.降低室壁肌张力和舒张末期压力

收尘极由哪几部分组成？