草木灰是一种农家肥料，它的主要成分是碳酸钾（K2CO3）．碳酸钾属于（ ） A．

第二部分语言知识运用(共二节，满分45分)

第一节语法填空（课文段落填空，共10小题，每小题1.5分，满分15分）

仔细阅读下面的短文，根据上下文填写适当的词语或使用括号中的词语的适当形式填空。                        A

On this important feast day, people eat food in the shape___11__ skulls and cakes with“bones” on it. ……The Western holiday Halloween also had ___12__ origin in old __13__ (believe) about return of the spirits of the dead people. It is now a children’s festival, when they ___14___ dress up and go to their neighbours’ homes to ask for sweets. If the neighbours do not give any sweets, the children might play __15___ trick on them.

B

Wang Peng sat in his empty restaurant____16___（feel） very frustrated. It had been a very strange morning. Usually he got up ____17___and prepared his menu of Barbecued Mutton kebabs, roast pork , stir-fried vegetables and ___18___ (fry) rice. By now his restaurant ought to be full of people but not today. He thought of his foods cooked in __19___ (hot), finest oil and nothing could be better. Suddenly he saw his friend Lao Li coming to other place to eat, something must have happened If Lao Li was not coming to his restaurant ___20___ he always did.

空气中体积分数最大的物质是（　　）

A．氮气

B．氧气

C．稀有气体

D．二氧化碳

根据《低压配电设计规范》，下列有关绝缘导线布线的说法正确的是（）

A.塑料管和塑料线槽布线宜用于屋内场所和有酸碱腐蚀介质的场所

B.塑料管暗敷或埋地敷设时，引出地（楼）面的一段管路，应采取防止机械损伤的措施

C.布线用塑料管（硬塑料管、半硬塑料管、可挠管）、塑料线槽，应采用难燃型材料，其氧指数应在27以上

D.穿管的绝缘导线（两根除外）总截面面积（包括外护层）不应超过管内截面面积的25%

两盘沿断层面（）方向相对错动的断层叫平移断层。

A、倾斜

B、倾向

C、倾角

D、走向

筒述轴温检测仪的主要技术参数和功能？