锅炉发生严重缺水时,此时向锅炉进水会引起汽包和水冷壁产生较大的(),甚至导致()。

题型:填空题

问题:

锅炉发生严重缺水时,此时向锅炉进水会引起汽包和水冷壁产生较大的(),甚至导致()。

考点:热能与动力工程热能与动力工程题库
题型:填空题

计算机病毒是指()。

A.生物病毒感染

B.被损坏不完整的程序

C.无法执行的程序

D.细菌感染

E.特制的具有破坏性的程序

题型:填空题

第二节摘录信息 (共5小题;每小题1分,满分5分)
阅读下面短文,根据所读内容在文后第65至第69小题的空格里填上适当的单词或短语,并将答案转写到答题卡上。
注意:每空不超过3个单词。
FOR many young people, Halloween is the best day of the year. The holiday has a very interesting history.
It was first celebrated in Ireland and Scotland as a festival of the dead. Families invited their ancestors (祖先) into their homes but tried to keep bad spirits (精灵) out by wearing scary costumes (服装).
Now the holiday is a time for fun and excitement. Families carve (雕刻) scary or funny faces into pumpkins and put candles inside to make them into lanterns (灯笼). These are called jack-o''-lanterns.
Children dress up in costumes and walk around their neighborhoods collecting candy. They knock on doors and when a person opens the door, the children shout, “Trick or treat!”
Once, this meant that if the person at the door did not give the children a treat, they would play a mean (坏的) trick. But today, children usually do not play tricks. They are too busy getting as much candy as they can!
       65         
 
interesting history
It was first celebrated in Ireland and Scotland as a festival of 66. ____.
Families 67. ____ their ancestors into their homes but tried to keep bad spirits out by
wearing scary costumes.
modern celebration
Families put 68. ____ inside the pumpkins to make them into lanterns. Children
dress up 69       and walk around their neighborhoods collecting candy.
 
题型:填空题

一位复发性单纯疱疹病毒性角膜炎患者,以下给予的治疗中哪一项不合适()。

A.抗病毒血清

B.环孢素

C.免疫球蛋白

D.干扰素

E.胸腺肽

题型:填空题

急非淋白血病M2a型与M1型主要区别 ()

A.Auer小体多少

B.过氧化物酶染色阳性程度

C.中性粒细胞碱性磷酸酶活性程度

D.原始粒细胞比例和早幼粒细胞以下阶段所占比例

E.原始粒细胞形态异常程度

题型:填空题

过罚相当原则既是设定处罚的原则,又是实施处罚的原则。 ( )

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