下列有关人体激素调节的叙述中，正确的是 A．如果幼年时期生长激素分泌不足会患呆小

请翻译下列名句

修守战之具，外连衡而斗诸侯

Since Hongyan Mechanical Engineering Co Ltd (Hongyan Co) could not settle the huge amount of debts due, its creditors applied for bankruptcy in the competent people’s court. The court accepted the application of the creditors and declared the bankruptcy of Hongyan Co. The court designated a bankruptcy administrator to be in charge of the bankruptcy liquidation. During the process of bankruptcy liquidation, the bankruptcy administrator formulated a list of bankruptcy assets, debts due and declared credits.(a) the appraised bankruptcy assets of Hongyan Co were as follows:(i) Office building – appraised value of RMB 2,400,000 yuan, mortgaged for a loan borrowed from the Communication Bank.(ii) Investment to a mutual fund – RMB 1,400,000 yuan.(iii) A rental receivable from Company A – RMB 1,900,000 yuan.(iv) Giving up a creditor’s right due 10 months before the bankruptcy of Hongyan Co – RMB 1,000,000 yuan.(b) the declared credits by Hongyan Co’s creditors were as follows:(i) Communication Bank’s loan – principal RMB 2,000,000 yuan with 10% of annual interest rate for two years.(ii) Company A’s credit due – RMB 7,000,000 yuan.(iii) Company B’s credit under a sales contract payable by Hongyan Co – RMB 1,500,000 yuan.(iv) Company C’s damages due to the termination of contract by the bankruptcy administrator – RMB 1,400,000 yuan.Required:Answer the following questions in accordance with the relevant provisions of the Enterprise Bankruptcy Law of China and give your reasons for your answer:

(a) state which creditor should be satisfied in the priority order in the allocation of the bankruptcy assets; (2 marks)

某化学探究小组拟用铜片制取Cu(NO₃)₂，并探究其化学性质。

(一)他们先把铜粉放在空气中灼烧，再与稀HNO₃反应制取硝酸铜。

(1)如果直接用铜屑与稀HNO₃反应来制取硝酸铜，可能导致的两个不利因素是____________________________、___________________。

(2)实验中铜粉应该放在________(填“蒸发皿”、“坩埚”或“烧杯”)中灼烧。欲从反应后的溶液中得到硝酸铜晶体，实验操作步骤按顺序分别是________、_______、过滤。

(二)为了探究Cu(NO₃)₂的热稳定性，探究小组按下图中的装置进行实验。(图中铁架台、铁夹和加热设备均略去)

往左试管中放入研细的无水Cu(NO₃)₂晶体并加热，观察到左试管中有红棕色气体生成，最终残留黑色粉末；用U形管除去红棕色气体，在右试管中收集到无色气体。

(1)红棕色气体是________。

(2)当导管口不再有气泡冒出时，停止反应，这时在操作上应注意________________。

(3)探究小组判断Cu(NO₃)₂的分解属于氧化还原反应，产物除了红棕色气体和黑色固体外，进一步分析、推断，分解产物中一定还含有____________。

(三)为了探究Cu(NO₃)₂在酸性条件下跟铁单质的反应。他们取一支试管，加入Cu(NO₃)₂溶液，滴入适量稀硫酸酸化，再加入一定量铁粉，实验后没有固体残留物质。

(1)反应中最先起氧化作用的是__________。

(2)该探究小组对反应后溶液中铁元素的价态进行探究，他们设计了实验方案，并进行实验。请按下表格式补充写出实验操作步骤、预期现象与结论。

扬州宝胜电缆厂，为了节约成本，增加效益，决定对生产中的废电线和碎线头进行回收利用．已知电线的绝缘皮是聚氯乙烯，线芯是铜．为了回收铜，同时得到硫酸亚铁，设计了如下回收方案：

试回答：

（1）写出A、B的化学式：A_________B_________

（2）纯铜在 _________ 中（填“金属1”或“金属2”）

（3）你认为方案 _________ 好，理由是 _________

（4）写出方案二中生成蓝色溶液的化学方程式 _________ ．

从5月1日起，北京市在中小学校等10类公共场所全面禁烟．有人吸烟时，周围的人很快就会闻到烟味，这种扩散现象说明气体分子______．