曲线超高顺坡坡度,最大不得大于()。A.2‰ B.2.5‰ C.3‰ D.3.5‰

题型:单项选择题

问题:

曲线超高顺坡坡度,最大不得大于()。

A.2‰

B.2.5‰

C.3‰

D.3.5‰

考点:铁路线路工技能考试中级线路工中级线路工题库
题型:单项选择题
短文改错。
     Tom and Jack are next door neighbours who all work        
in same office, so they often walk together to and from  
work. One afternoon, they was walking home together      
while it started to rain. Tom quickly opened his          
umbrella and said proud, "My wife really has great      
foresight (远见). She said this morning it will rain      
and told me carry my umbrella with me." Jack smiled      
and walked closely to him under the protection of Tom's  
umbrella and said, "My wife has more greater foresight.  
He didn't let me carry mine and told me to use yours."  
1._________  
2.________    
3._________  
4. _________  
5. _________  
6. _________  
7. _________  
8. _________  
9. _________  
10. _________
题型:单项选择题

患者女,28岁,以"右下腹至全腹剧痛10小时"为主诉入院。患者入院前一天参加宴会,饮酒饱餐后3小时突然出现右下腹剧痛,疼痛呈持续性、刀割样,并很快转移至全腹。后稍有缓解,但仍以右下腹为主。深呼吸、变换体位时加剧,静卧,两腿屈曲时腹痛减轻,同时伴有恶心,呕吐当日食物,无咖啡样物及鲜血。病后自觉畏寒,发热,无寒战。未排气、排便。既往史:无右下腹疼痛史,有反复发作的中上腹疼痛及反酸、胃灼热史。服用胃药可缓解,无呕血便血史。查体:体温38.0℃,P88次/分,R37次/分,BP120/80mmHg,急性面容,神志清楚,平卧位,两腿屈曲,心肺未见异常,腹部平坦,未见胃肠形及蠕动波,全腹肌紧张,拒按,有明显压痛反跳痛,以右下腹为主,肾区叩痛阴性。

入院后,患者腹痛难忍,血压下降至85/50mmHg,心率115次/分,经抗炎治疗未见明显好转。下一步的治疗原则是()

A.纠正休克状态

B.纠正休克同时继续抗炎保守治疗

C.手术

D.纠正休克同时手术治疗

E.继续抗炎保守治疗

F.在抗炎抗休克的同时行手术治疗

题型:单项选择题

马上应行简单和实用的检查是

A.下胃管检查胃液

B.腹部CT

C.腹部细针穿刺

D.MRI

E.肝动脉造影

题型:单项选择题
计算下列各题,能简算的要简算
1
3
+
1
4
-
1
24
)×24
3-
3
2
÷
21
10
-
2
7
3
4
×
1
7
+
1
4
÷7
19÷[(
1
5
+
3
4
)×
5
6
].
题型:单项选择题

下列关于辐射段内炉管受热情况描述正确的是()。

(A)直接受火焰辐射热

(B)烟气的对流热

(C)炉衬的反射热

(D)A、B、C均正确

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