更多“当钢轨折损严重、断缝超过30mm或紧急处理后不能及时进行永久”相关的问题
伴有心力衰竭的心绞痛患者,不宜选用的药物()
A . A.维拉帕米
B . B.普萘洛尔
C . C.比索洛尔
D . D.硝酸甘油
E . E.硝酸异山梨酯
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再贴现了是中央银行对商业银行及其他金融机构的贷款或者放款利率。()
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价格调整中的基价指数应采用()的价格指数。
A、开标当日
B、开工前28天
C、投标截止日前28天
D、购买标书的当日
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工艺基本知识,th=404}当D-202的TS为12.8%时,需加多少N-70(理想值为13.8%)?
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人生是一个容器,可这个容器的容量实在是非常( )。愁苦和畏惧多了,欢乐与( )就少了。
A.庞大 胆量
B.可观 轻松
C.有限 勇气
D.莫测 勇敢
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依据风险产生的行为来分类,个人行为引起的风险称为( )
A.纯粹风险B.特定风险C.基本风险D.投机风险
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在训练中,老年人要保持正常的呼吸,掌握正确的()训练技术动作并对关节运动范围有所控制。
A.耐力B.柔韧C.抗阻D.体能
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只有增长速度大于100%才能说明事物的变动是增长的。( )
A.对 B.错
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以下不是汽车维修、检验中使用的计量器具应严格执行的制度内容是()。
A.所有计量器具、检测仪器必须计量检定合格,保持其有效精度
B.使用计量器具、检测仪器必须具备正常的工作环境条件
C.配备专职保管、维护和使用计量器具、检测仪器的人员
D.所有计量器具、检测仪器定期更换新件,以保证其精度
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Animals have different ways of protecting themselves against wintertime weather. Some animals grow heavy coats of fur or feathers, while others dig into the ground to find a warm wintertime home. Some animals spend the winter in a deep sleep because by going to sleep they avoid the time of the year when food is scarce and the temperatures are low. Their sleep is known ashibernation. There is much about hibernation that puzzles scientists. For example, they are wondering how hibernation came into being. Some scientists have explored the possibility that animals release a chemical that starts them hibernating. One thing that scientists are certain about is that animals hibernate only when it is cold. Hibernation is a seasonal practice. Some animals that fall into a wintertime sleep are not true hibernators because they spend only a part of the cold season asleep. Bears, for example, can easily be awakened from their winter nap. They are not true hibernators. Sometimes it is difficult to determine whether a particular animal is a true hibernator. For example, some mice hibernate, but others do not. The same is true of bats. Some of them hibernate. Other do not.
A.takes place only during a particular seasonB.occurs only during the nightC.is a daily practiceD.only happens when a species becomes over-populated
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数据结构分为逻辑结构和存储结构,循环队列属于______结构。`
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三重生态观揭示:当代人类的生存关系,由()之三重生态及其结构化关系而构成。
A.元生态
B.类生态
C.内生态
D.人文生态
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文艺复兴运动是以复兴古希腊、古罗马文化的形式出现的。()
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A . 三个音素B . 四个音素C . 五个音素D . 六个音素
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