根据什么原则选择指示剂?为什么某些外表上同属一种类型的滴定,而选择的指示剂不相同?

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问题:

根据什么原则选择指示剂?为什么某些外表上同属一种类型的滴定,而选择的指示剂不相同?

考点:化学工程水化验水化验题库
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正常生产时,转化在提量时,原料气要稳步提高,每次先提()再提(),然后再调节转化炉温度。

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某公司某月经营活动现金净流量为150万元,投资活动的现金流入量为35万元,现金流出量为15万元,融资活动现金净流量为130万元,则该公司该月的现金净流量为( )万元。

A.255

B.230

C.300

D.207

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肾小球毛细血管的滤过屏障主要为()

A.上皮细胞足突裂隙

B.内皮细胞孔

C.肾小球基底膜

D.基底膜的外疏松层

E.基底膜的内疏松层

题型:问答题 简答题

Rosa and Alexei are partners in a successful unlimited partnership. Rosa is highly ambitious and wishes to pursue rapid growth, but Alexei does not want to take unnecessary risks and is satisfied with the business as it is currently structured.Rosa has been taking decisions that exceed her authority under the partnership agreement. She recently ordered expensive new IT equipment. Alexei is angry as he considers the equipment to be far too sophisticated for the needs of the business in the foreseeable future. Rosa argues that the business needs to invest heavily to build on its success.The partners meet to resolve their differences. Alexei demands that the IT equipment, which is now installed and ready for use with new software, be returned to the supplier. The supplier of the equipment has submitted its invoice and this is due for payment immediately. Rosa refuses to agree to return the equipment.Required:

(c) Explain whether Alexei can take any action against Rosa for breaking the terms of the partnership agreement. (3 marks)

题型:问答题 简答题

可使用糖皮质激素治疗的疾病是()。

A.急性喉炎

B.急性会厌炎

C.喉痉挛

D.喉水肿

E.喉淀粉样变

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