可引起 * * 感染的是A．曼氏迭宫绦虫 B．短膜壳虫 C．溶组织阿米巴 D．毛滴虫 E．

左上3右上3缺失时，基托蜡型的唇侧厚度应为 （）

A.1.0～1.5mm

B.1.0～2.0mm

C.2.0～2.5mm

D.2.5～3.0mm

E.应根据患者面部丰满度而定

字母“k”的ASCII码值是十进制数

A．156

B．150

C．120

D．107

化学兴趣小组设计以下实验方案，测定某已部分变质的小苏打样品中Na₂CO₃的质量分数。

方案一：称取一定质量样品，置于坩埚中加热至恒重后，冷却，称量剩余固体质量，计算。

(1)坩埚中发生反应的化学方程式为：________。

(2)实验中，需加热至恒重的目的是________。

方案二：称取一定质量样品，置于小烧杯中，加适量水溶解；向小烧杯中加入足量Ba(OH)₂溶液，过滤，洗涤、干燥沉淀，称量固体质量，计算。(已知：Ba^2＋＋OH^－＋HCO₃^—=BaCO₃↓＋H₂O)

(1)过滤操作中，除了烧杯、漏斗外，还要用到的玻璃仪器为________。

(2)实验中判断沉淀是否完全的方法是________。

方案三：按如下图所示装置进行实验：

(1)D装置的作用是________。分液漏斗中________(填“能”或“不能”)用盐酸代替稀硫酸进行实验。

(2)实验前称取17.90 g样品，实验后测得C装置增重8.80 g，则样品中Na₂CO₃的质量分数为________。

(3)根据此实验测得的数据，测定结果有误差，因为实验装置还存在一个明显缺陷，该缺陷是________。

There is no better way to enjoy Scottish traditions than going fishing and tasting a little bit of whisky(威士忌)at a quiet place like the Inverlochy Castle. When Queen Victoria visited the castle in 1873, she wrote in her diary, “I never saw a lovelier spot ,” And she didn’t even go fishing.

Scotland is not easily defined. In certain moments, this quiet land of lakes and grasses and mountains changes before your very eyes. When evening gently sweeps the hillside into orange light, the rivers, teeming with fish, can turn into streams of gold . As you settle down with just a fishing pole and a basket on the bank of River Orchy, near the Inverlochy Castle , any frustration(烦恼) will float away as gently as the circling water. It’s just you and purple, pink, white flowers, seeking a perfect harmony. If you are a new comer to fishing, learning the basics from a fishing guide may leave you with a lifetime’s fun. For many, fishing is more than a sport; it is an art.

Scotland offers interesting place where you can rest after a long day’s fishing. Set against a wild mountain and hidden behind woodland, the beautiful Inverlochy Castle Hotel below the Nevis is a perfect place to see the beauty of Scotland’s mountains. Ben Nevis is the highest of all British mountains, and reaching its 1343-metre top is a challenge. But it’s not just what goes up matters; what comes down is unique. More than 900 metres high, on the mountain’s north face, lies an all-important source of pure water. Its name comes from the Gaelic language “usquebaugh” or “water of life”; and it is the single most important ingredient(原料) in Scotland’s best known drink: whisky.

小题1:The story of Queen Victoria is to show that _____.

A．the queen is rich in tour experience

B．the Castle is a good place to go in Scotland

C．tasting whisky is better than going fishing

D．1873 is a special year for the queen小题2:How is Paragraph 2 mainly developed?

A．By giving descriptions.

B．By following time order.

C．By analyzing causes.

D．By making comparisons.小题3:What is Ben Nevis special for?

A．The Inverlochy Castle Hotel .

B．The beauty of its surroundings.

C．The water from the mountain.

D．The challenge up to its top.小题4:What is the main purpose of the passage?

A．To introduce Scottish traditions to tourists.

B．To show the attractions of Scotland to readers.

C．To explore geographical characteristics of Scotland.

D．To describe the pleasures of life in Scotland.

企业年金由国家宏观指导、企业内部决策执行，费用由企业和职工个人缴纳，企业缴费在工资总额（）以内的部分，可从成本中列支。

A.3%

B.4%

C.5%

D.6%