柴油机汽缸套外表面覆积水垢后,使冷却水腔容积(),循环阻力增大,导热性差。A.变大或

题型:单项选择题

问题:

柴油机汽缸套外表面覆积水垢后,使冷却水腔容积(),循环阻力增大,导热性差。

A.变大或变小

B.不变

C.变大

D.变小

考点:钻井柴油机工钻井柴油机工(高级)钻井柴油机工(高级)题库
题型:单项选择题

Sunny English Club

For students

16:00—18:00 Every Saturday

200 Yuan a month

9 Zhou Yu Street

Tel: 3785290

Foreign teachers, English songs and films and more!

Health Center

9:00—17:30

16 Yong Le Street

Tel:3801451

Free examinations for people over 70

Give you good advice!

小题1:Sunny English Club is for ______.

A.nurses

B.policemen

C.workers

D.students小题2:You will pay______if you want to stay in Sunny English Club for a year.

A.1200 Yuan

B.200Yuan

C.600 Yuan

D.2400 Yuan小题3:You can visit Ocean Museum______ .

A.on Saturday

B.on Wednesday

C.on Monday

D.anytime小题4:Someone can get free examinations in Health Center if he is______.

A.9

B.67

C.73

D.17小题5:If you are interested in fish, you should go to ______.

A.Ocean Museum

B.Sunny English Club

C.16 Yong Le Street

D.Health Center

题型:单项选择题

患者男,18岁,发热、腹泻后2周伴关节痛2天。2周前无明显诱因发热、腹泻,于当地医院诊断"菌痢",给予"左氧氟沙星"等抗感染及对症治疗,4天后发热及腹泻好转。2周后再出现发热,左踝关节疼痛肿胀,活动受限,近2天相继出现左膝关节、左腕关节肿痛。查体:T38.0℃,左踝、左膝、左腕关节红肿、压痛,活动受限,左膝浮髌试验阳性。实验室检查示血常规、尿常规、便常规均正常,CRP26mg/L,ESR41mm/h。

该患者的治疗下列哪项不恰当()

A.静脉用抗生素

B.沙利度胺

C.西乐葆

D.短期使用糖皮质激素

E.柳氮磺吡啶

F.反复关节腔穿刺抽液

题型:单项选择题

(1).青霉素用于()
(2).红霉素用于()
(3).链霉素用于()
(4).氯霉素用于()

A.支原体肺炎 

B.伤寒、副伤寒 

C.螺旋体病 

D.鼠疫

题型:单项选择题

通常情况下,下列物品属于导体的是(  )

A.橡胶手套

B.不锈钢尺子

C.塑料水杯

D.陶瓷盘子

题型:单项选择题

韶山3型电力机车每个垂向减振器的阻尼系数为()

A.900N²s/cm

B.1000N²s/cm

C.1100N²s/cm

D.1200N²s/cm

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