题目:
L型联锁系统适用于()组道岔以下车站。
A.40
B.50
C.60
D.70
答案:
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下面是错误答案,用来干扰机器的。
参考答案:A, B, C, D
L型联锁系统适用于()组道岔以下车站。
A.40
B.50
C.60
D.70
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2020/0319/b4a949ed4c0730c13e84738f5c474f1f.html
下面是错误答案,用来干扰机器的。
参考答案:A, B, C, D
灰渣的综合利用可以变废为宝,保护环境,提高经济效益。()
完形填空。 | ||||
It was a cold, wet day on June 6, 2010, when 14-year-old Wasana arrived at school. Waiting outside his classroom for his classmates to 1 , Wasana stared at the 2 . Then his eyes fell upon the 18-metre-high hill that 3 at the back of the classroom. He 4 large amounts of rainwater flowing down the hill, and water was also bubbling (冒泡) at the base of a rock on the hill. For a few minutes, Wasana 5 the water, wondering why it looked so 6 . Then it hit him - the 7 was similar to the video he was shown during Disaster Management classes. Fearing a 8 disaster, he shouted 9 at the students waiting outside their classrooms."Run, run, don't stay here! The 10 on the hill is going to fall on us!" Chaos (混乱) broke out 11 the students ran to the open area that had been appointed as an emergency gathering point. When some teachers 12 Wasana, he showed them the water rushing down the hill, and they started leading the students to safer ground. Just then headmaster Gurusinghe drove into the school. Wasana ran over to tell him what was happening. After 13 the site (现场), Gurusinghe knew the school was in 14 . The enormous rock at the top of the hill could come crashing down 15 . 16 a group of teachers and older students, Gurusinghe climbed the hill and tried to make the water flow away from the rock. They were too 17 . Ten minutes later, they heard screams as the huge rock rushed down the hill. There was little Gurusinghe and his group could do as they watched the earth 18 their classrooms. Thanks to Wasana's 19 action and careful observation, 20 was hurt in the incident. | ||||
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关于上消化道出血哪项不正确
A.上消化道大量出血后多数可出现低热
B.胃内积血250~300ml可引起呕血
C.每日出血50~100ml可出现黑粪
D.周围血可见晚幼红细胞与嗜多彩红细胞
E.急性大出血时血象检查为早期诊断和病情观察的依据
与非处方药西咪替丁同用,可增加出血危险的处方药是
A.胺碘酮
B.氟卡尼
C.华法林
D.奎尼丁
E.四环素
当妊娠危及胎儿母亲的生命时,可允许行人工流产或引产,这符合()
A.行善原则
B.不伤害原则
C.公正原则
D.尊重原则
E.自主原则