对锅炉给水经常要监督的项目是硬度、溶解氧、pH值、铜、铁等,目的是防止热力设备及系统

题型:判断题

问题:

对锅炉给水经常要监督的项目是硬度、溶解氧、pH值、铜、铁等,目的是防止热力设备及系统腐蚀、结垢。

考点:干法熄焦工干法熄焦工题库
题型:判断题

比较大小:﹣2(   ) 0(填“>”、“<”或“=”).

题型:判断题

图是一幅西方的漫画,此漫画反映的主题是(   )

A.中国拒绝对西方国家开放市场

B.中国拒绝西方式民主、自由

C.西方民主适合所有国家

D.西方赞扬中国的强大

题型:判断题

Dear Mr. and Mrs. Brown,

I’m writing to you from my home in China. I returned           

home safe and sound. When thinking of the wonderful day            

小题1:______________

I spent in New Orleans, I just can’t help think of both of             

小题2:______________

you. It was very kind for you to have provided everything             

小题3:______________

to make my stay there such happy experience. I’ve                  

小题4:______________

learned so many, not only English but also culture. And I          

小题5:______________

really enjoy a great deal, the fun and laughter we shared          

小题6:______________

them with each other. Thank you very much. I’ll always             

小题7: ______________

remember this trip as well as your kind.                           

小题8:______________

Welcome to China when it’s convenient for you. I’ll be very     

小题9:______________

glad to show you around. And you’ll surely have a pleased              

小题10:______________

visit here.

I’ll keep in touch and write you later. Please take care!

Yours faithfully,

Li Hua

题型:判断题
不定项选择
下列说法正确的是(   )

A.光的干涉现象说明光具有粒子性,能发生光电效应现象说明光有波动性

B.电磁波谱中波长最长的是γ射线,波长最短的是无线电波

C.光子具有波粒二象性,实物粒子只具有粒子性,不具有波动性

D.通常说光波是一种概率波,意思是光子在空间分布的概率是受波动规律支配的

题型:判断题

下列喉部疾病可行喉显微手术的是:()

A.声带息肉 

B.声带白斑 

C.Reinke氏水肿 

D.喉 * * 状瘤 

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