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【简答题】
(10分)已知甲、乙、丙、丁、戊、己六种物质中含同一种元素,它们之间的转化关系如右图所示。其中,一种红褐色絮状沉淀,戊是一种白色沉淀。请回答下列问题: (1)甲→乙的化学方程式: 。 (2)在乙溶液中加入H 2 O 2 溶液后,观察到的现象是: ;如果在乙溶液中加入新制的氯水,该反应的离子方程式是: 。 (3)由丙的饱和溶液可以制得丁为分散质的胶体,该胶体中丁粒子直径的大小范围是 ;实验室常用 来区分溶液和胶体这两种分散系。
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【简答题】先设计或修改一套或几套自己用的模板/ ,可以在最大程度上保证你的课件 。 老师的意思是防止 。
【多选题】Choose the best word and put the letter in the blank.
A.
campus
B.
course
C.
valuable
D.
regarded
E.
pioneer
F.
perceive
G.
majority
H.
break
I.
entrolled
J.
establish K. participate L. reduced M. worthless N. minority O. prospect After retiring from 30 years of teaching, Ethbell Pepper could easily have decided to sit back and relax and enjoy a peaceful retirement. But that kind of life is not for Ethbell Pepper. "I just wanted to do something different. If you are going to _1 i n life, do it. Don't just sit down and look out of the window," she says. At 68, she decided to become one of the 2 participators in a program at the university of California. The program offers 3 housing and classes to people over sixty. She 4 in a class called Human Relationships and Diverse Society. "I taught _5 students in my English and drama classes in high school for 20 years. But in this 6 , I found out a lot about other cultures I didn't know then. One of the most important lessons that I'm learning is to _7 , not to judge." Older adults can add to the educational resources of university by bringing with them a lot of _8 experiences. Their presence on campus helps __ 9 some long beliefs of aging. Young students may have fears of growing older. But that kind of fear can be __1 0 _ as they see the older people can be active, healthy, and continue to contribute to society. The younger students may begin to see aging as a natural part of living.
【简答题】在第二题基础上进 行零件体参数化设计变更生成凹槽 后 截取第3张图
【简答题】试从 83 块一套的量块 中同时组合下列尺寸 mm ) : ( 1 ) 29.875 (2 ) 40.79
【简答题】试从83块一套的量块中同时组合下列尺寸(单位为mm):29.875
【单选题】听力原文:Would you like to sit indoors or outdoors? (A) If s nice outside. (B) I don't enjoy outdoor activities. (C) Please, have a seat. (14)
A.
B.
【单选题】Last night he had a bed to sleep _____, but I had only a chair to sit _____. [     ]
A.
in; on
B.
/; /
C.
on; in
D.
in; to
【单选题】下列哪一个最准确地描述了业务流程?()
A.
以最佳的方式完成一个工作单元的步骤
B.
用来获取业务需求的工具
C.
必须由系统或人在特定的顺序下完成完成的任务流
D.
BPEL代码运行在业务流程引擎策划人和系统工作的环境下
【单选题】以下哪一项最准确地描述了左右半球执行的一般功能?
A.
左半球擅长信息的序列分析
B.
右半球擅长信息的序列分析
C.
右半球擅长信息分析
D.
左半球擅长信息合成
E.
两个半球的功能相同
【多选题】以下课程分类是《职业全能培训库》的有
A.
语言学习
B.
考研升学
C.
就业创业
D.
职业考证
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