向明矾水溶液中逐滴加入Ba(OH)2溶液,写出符合下列要求的离子方程式. (1)

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问题:

向明矾水溶液中逐滴加入Ba(OH)2溶液,写出符合下列要求的离子方程式.

(1)明矾水溶液中Al3+恰好沉淀时,______;

(2)只生成一种沉淀时,______.

考点:离子方程式
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The Border Gateway Protocol (BGP) is an interautonomous system () protocol. The primary function of a BGP speaking system is to exchange network () information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that reachability information traverses. BGP-4 provides a new set of mechanisms for Supporting () interdomain routing. These mechanisms include support for advertising an IP () and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including () of AS paths. These changes provide support for the proposed supernettting scheme.

BGP-4 provides a new set of mechanisms for Supporting () interdomain routing.

A.answerless

B.connectionless

C.confirmless

D.classless

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非电气化区段JTl型通用式机车信号的输入电路采用了()耦合的阻抗变换电路。

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用合适的句子补全对话。

A: Where did you go on vacation?

B: I went to Paris.

A: 1___?

B: My parents.  

A: 2___?

B: It was sunny.

A: 3___?

B: We watched many clothes shows.

A: Did your family go shopping?

B: 4___. We bought a lot of things. 

A: 5___?

B: Yes, the people there were really friendly to us .I also made friends in France .

A: I think you had a good trip.

B: Yes, you are right.

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通圣消毒散功效与作用

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患者,男性,62岁,发现左眼上睑肿物3个月,不伴眼红痛。眼科检查:双眼视力1.0,左眼上眼睑皮下扪及弥漫性结节状不规则、质中肿物,无压痛,无活动性,边界不清。上睑结膜增厚,表面不规则颗粒样、息肉样增生,粉红色,质脆,触之易出血。颞侧睑结膜见肉芽肿性增生,红褐色,未见正常结膜面。右眼前节与眼底检查未见异常。眼眶CT:左侧上睑与眼球间软组织增厚,包绕眼球,与眼上肌群前端分界不清。眼外肌与视神经眼眶壁未见异常。

根据上述所说此患者的初步诊断是()

A.角结膜原位癌

B.结膜肉芽肿

C.结膜淀粉样变

D.结膜皮样瘤

E.皮脂腺癌

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