用硬胶球清洗凝汽器较软胶球清洗的效果为好

D

Besides entertainment and beautiful lanterns, another important part of the Lantern Festival, or Yuanxiao Festival is eating small dumpling balls made of glutinous rice flour. We call these balls Yuanxiao or Tangyuan. Obviously, they get the name from the festival itself. It is said that the custom of eating Yuanxiao originated during the Eastern Jin Dynasty in the fourth century, then became popular during the Tang and Song periods.

The fillings inside the dumplings or Yuanxiao are either sweet or salty. Sweet fillings are made of sugar, walnuts, sesame (芝麻), osmanthus flowers (桂花), rose petals, sweetened tangerine (橘子) peel, bean paste, or jujube paste(枣子酱). A single ingredient or any combination can be used as the filling. The salty variety is filled with minced meat(肉末儿), vegetables or a mixture.

The way to make Yuanxiao also varies between northern and southern China. The usual method followed in southern provinces is to shape the dough of rice flour into balls, make a hole, insert the filling, then close the hole and smooth out the dumpling by rolling it between your hands. In North China, sweet or nutmeat stuffing is the usual ingredient. The fillings are pressed into hardened cores, dipped lightly in water and rolled in a fiat basket containing dry glutinous rice flour. A layer of the flour sticks to the filling, which is then again dipped in water and rolled a second time in the rice flour. And so it goes, like roiling a snowball, until the dumpling is the desired size.

The custom of eating Yuanxiao dumplings remains. This tradition encourages both old and new stores to promote their Yuanxiao products. They all try their best to improve the taste and quality of the dumplings to attract more customers.

What is the best title of this passage().

A. The Lantern Festival

B. The ingredients of Yuanxiao

C. The difference between Yuanxiao and Tangyuan

D. China’ s traditional food--Yuanxiao

嗌干、心痛，渴而欲饮，脯臂内后廉痛厥，多见于（）

A．腰膝酸软，神疲乏力，耳鸣失聪，小便频数而清 

B．腰膝酸软而痛，眩晕耳鸣，齿松发脱，五心烦热，潮热盗汗 

C．成人早衰，耳鸣耳聋，健忘恍惚，两足痿软，发脱齿摇 

D．身体浮肿，腰以下尤甚，按之没指，畏寒肢冷，腰膝酸冷 

E．面色白或黧黑，腰膝酸冷，形寒肢冷，下肢为甚，神疲乏力

一个足球由12块黑皮（五边形）和20块白皮（六边形）缝制而成．现有360块黑皮，至少要配多少块白皮才能把黑皮用完？

18世纪的很长一段时间，制碱技术掌握在西方少数发达国家手中．我国有一位科学家，他潜心研究，终于发明了联合制碱法，为我国的制碱工业做出了杰出贡献．他的名字叫______．

可用于马钱子中毒解救的药是（）

A．二巯基丙醇类

B．尼可刹米

C．肾上腺素

D．苯巴比妥钠

E．阿托品