国际装备制造业的发展趋势包括哪六个方面？

对于硬肿症的临床表现描述错误的是（）

A.可见紧张性水肿

B.腋温-肛温差由正值变为负值

C.低体温，体温<35℃，严重者<30℃

D.硬肿为对称性，依次为双下肢、臀、面颊、两上肢、背、腹、胸部等

E.患儿不吃、不哭、少动，严重者可伴有休克、肺出血及多脏器功能衰竭

One year our family decided to have a special celebration of Mother’s Day, as a token of appreciations for all the sacrifices that Mother had made for us. After breakfast we had arranged, as a surprise, to hire a car and take her for a beautiful drive in the country. Mother was rarely able to have a treat like that, because she was busy in the house nearly all the time.

But on the very morning of the day, we changed the plan a little, because it occurred to Father that it would be even better to take Mother fishing. As the car was hired and paid for, we might as well use it to drive up into the hills where the streams are. As Father said, if you just go driving without object, you have a sense of aimlessness, but if you are going to fish there is a definite purpose that heightens the enjoyment.

So we all felt it would be nicer for Mother to have a definite purpose . Father had just got a fishing rod the day before, which he said mother could use if she wanted to. Only Mother said she would much rather watch him fish than try to fish herself.

So we got her to make up a sandwich lunch in case we got hungry, though we were to come home again to a big festive dinner.

Well, when the car came to the door, it turned out that there was not as much space in it as we had supposed. It was plain that we couldn’t all get in.

Father said that he could just stay home and put in the time working in the garden. He said that there was a lot of rough dirty work that he could do, like digging a trench for the garbage, which would save hiring a man, and so he said that he’d stay home; he said that we were not to let the fact that he had not had a real holiday for three years stand in our way. He wanted us to go right ahead and not to mind him.

But of course we all felt that it would never do to let Father stay home, especially as we knew he would make trouble if he did. The two girls, Anne and Mary, would have stayed and helped the maid get dinner, only it seemed such a pity,for the two girls were eager to show their new hats on a lovely day like this. But they said that Mother had only to say the word and they’d gladly stay home and work. Will and I would have dropped out, but unfortunately we wouldn’t have been any use in preparing the dinner.

小题1:The author’s family decided to celebrate Mother’s Day specially to _______.

A．show love for their mother

B．show gratitude to their mother

C．show respect for their mother

D．to make up for a previous appointment小题2:According to Paragraph 2, we know that the plan was changed because________.

A．Father proposed to go fishing out

B．we thought that driving out is boring

C．we failed to hire a car to go out

D．the car was not big enough小题3:What problem did we find when the car arrived?

A．The car was too old to drive on mountain roads.

B．The car was larger than we expected.

C．The car was too small to accommodate us all.

D．The car was too plain looking.小题4:Why didn’t the author drop out of the activity?

A．Because his sisters didn’t join in.

B．Because he needed to have dinner.

C．Because he couldn’t cook the dinner.

D．Because he hadn’t had a real holiday for three years.小题5:Which of the following proverbs describes the text best?

A．Everything comes to him who waits.

B．Changes always go beyond plans.

C．Better late than never.

D．Once on shore, one prays no more.

某研究性学习小组用不纯的氧化铝（杂质为Fe₂O₃）为原料，设计了冶炼铝的以下工艺流程（部分反应产物没有标出）：

（1）试剂X的化学式为        ，反应Ⅰ的离子方程式是                        。实验室配制480mL 1 mol·L^-1 X的溶液必须用到玻璃仪器除烧杯、玻璃棒、试剂瓶、胶头滴管外，还有           。常用来可以标定所配X的溶液浓度是否准确的实验名称是                 。

（2）按照方案设计，试剂Z的作用是调节溶液的pH，以生成沉淀b[Fe(OH)₃]。从试剂工业的角度，你认为方案   更合理，理由是                   。

（3）已知N为氨气，实验室中还可以用下图装置制取氨气并进行氨气喷泉实验。

①仪器A的名称是           ，装置中A口部和B口部之间联通导气管的作用是                              。

②若用此装置制备N气，若A中盛有浓氨水，则B装置中的固体试剂不可以选用下列的       （填字母序号）。

a．生石灰    b．烧碱      c．胆矾     d．碱石灰

（4）室温下，在a mol·L^-1的(NH₄)₂SO₄水溶液中pH=5，存在着平衡NH₄⁺+H₂O NH₃·H₂O+H⁺，则该平衡常数的表达式为                       （用含代数a的较为精确地数字表达式表示，不必化简，不做近似运算）。

对可疑糖尿病患者最有诊断价值的检查是（）

A.空腹血糖

B.口服葡萄糖耐量试验

C.24h尿糖定量

D.糖化血红蛋白测定

E.尿酮测定

在中国大陆，德育概念泛化的主要原因是什么？