写出下列化学方程式: (1)在MnO2中加入双氧水,MnO2起作用。 (2)氯化

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问题:

写出下列化学方程式:

(1)在MnO2中加入双氧水                   ,MnO2      作用。

(2)氯化钠溶液与硝酸银溶液混合                               

(3)有水生成的复分解反应                                     

(4)铁制容器不能盛放农药波尔多液                             

该反应属于基本反应类型中的                反应。

考点:化学反应方程式的书写化学图标化学反应方程式的配平化学反应方程式的意义
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小题1:Jack’s little sister likes to watch the program Where are we going, Dad?. (改为一般疑问句)

______ Jack’s little sister _______ to watch the program Where are we going, Dad??

小题2:The 20th FIFA World Cup was held in Brazil on June 13, Beijing time.(对划线部分提问)

________ ________ the 20th FIFA World Cup held in Brazil?

小题3:We have studied at this school for three years.(改为同义句)

Three years has ________ since we ________ to study at this school.

小题4:The girl is shy. She is afraid to speak in public. (合并为一句)

The girl is _____ shy ______ she is afraid to speak in public.

小题5:Michael will take care of our dog when we are away on holiday next week. (改为同义句)

Michael will ______ ______ our dog when we are away on holiday next week.

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“酒香不怕巷子深”这句话最能说明化学知识中的[ ]

A.微粒都很小

B.微粒之间存在间隙

C.微粒在不断运动

D.微粒保持物质的化学性质

题型:填空题

某急性心梗病人行心电监护时,ECG显示QRS振幅低,原因可能为()。

A.肌电干扰

B.电磁干扰

C.两个电极之一正好放在了心肌梗死的部位的体表投影区

D.线路连接不良

E.电极正负位置放倒置

题型:填空题

简述绩效标准设定的注意事项。

题型:填空题

男性,25岁。腹痛、腹泻伴低热1年半。结肠镜检查发现回肠末端黏膜呈鹅卵石样表现,活检病理示非干酪性肉芽肿,最可能诊断为

A.肠结核
B.肠息肉
C.肠伤寒
D.Crohn病
E.溃疡性结肠炎

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