唐朝在西域东部设置三州，在吐鲁番地区的是（） A.西州 B.伊州 C.庭州

In the United States, the first day nursery was opened in 1854. Nurseries were established in various areas during the (91) half of the 19th century; most of (92) were charitable. Both in Europe and in the U. S. , the day-nursery movement received great (93) during the First World War, when (94) of manpower caused the industrial employment of unprecedented numbers of women. In some European countries nurseries were established (95) in munitions (军火)plants, under direct government sponsorship. (96) the number of nurseries in the U.S. also rose (97) , this rise was accomplished without government aid of any kind. During the years following the First World War, (98) , Federal, State, and local governments gradually began to exercise a measure of control (99) the day nurseries by (100) them and by inspecting and regulating the conditions within the nurseries.
The (101) of the Second World War was quickly followed by an increase in the number of day nurseries in almost all countries, as women were (102) called upon to replace men in the factories. On this (103) the U. S. government immediately came to the support of the nursery schools, (104) $6,000,000 in July, 1942, for a nursery school program for the children of working mothers. Many States and local communities (105) this Federal aid. By the end of the war, in August, 1945, more than 100,000 children were being cared (106) in day-care centers receiving Federal (107) Soon afterward, the Federal government (108) cut down its expenditures for this purpose and later (109) them, causing a sharp drop in the number of nursery schools in operation. However, the expectation that most employed mothers would leave their (110) at the end of the war was only partly fulfilled.

A．outset

B．outbreak

C．breakthrough

D．breakdown

锌锰干电池是最早使用的化学电池，其基本构造如图1所示．

（1）锌锰干电池的负极电极反应式是______，电路中每通过0.4mole^-，负极质量减少______g；工作时NH₄⁺离子在正极放电产生2种气体，其中一种气体分子是含10e^-的微粒，正极的电极反应式是______．

（2）某研究小组对电池内黑色糊状物进行了如图2所示实验

已知：Zn（OH）₂是两性氢氧化物．完成下列实验报告：

实验步骤	实验现象	实验结论
①取少量上述无色溶液于试管中，逐滴加入NaOH溶液，直至过量．	生成白色沉淀，______	无色溶液中 存在Zn2+离子
②______	______	无色溶液中 存在NH4+离子

（3）利用残渣中分离出的MnO₂，研究其在H₂O₂制O₂过程中的作用．实验装置如图3所示．将等物质的量浓度、等体积H₂O₂溶液加入分液漏斗中，分别进行2个实验（气体的体积在相同条件下测定）．

序号	烧瓶中的物质	实验记录	实验结论与解释
实验一	足量MnO2	收集到56mL气体	MnO2做催化剂
实验二	足量MnO2 和稀硫酸	黑色粉末部分溶解， 收集到112mL气体	______ ______

①实验一、二中参加反应的H₂O₂的物质的量之比为______；

②实验二中反应的离子方程式为______；

③在测量气体体积时，除要注意待气体温度恢复至室温、平视读数外，还需要注意______．

电渣压力焊在焊接生产中，焊工应随时进行自检，当发现“未焊合”时，应采取哪些消除措施（）

A.减小焊接电流

B.增大焊接电流

C.避免焊接时间过短

D.检修夹具，确保上钢筋下送自如

E.其他措施

我国经典文献中较少提到法律而多提到刑，说明我国古代对礼的执行力度较低。

弃船或救生演习时，旋转式吊柱的救生艇要求自卸去艇罩起在（）内放至水面。

A.15分钟

B.10分钟

C.7分钟

D.5分钟