更多“男,7岁,上颌右侧第二乳磨牙近中邻面深龋穿髓,经根管治疗后,”相关的问题
名片是一个人身份的象征,将名片放在靠近心脏的地方,是对对方的一种礼貌和尊重。
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目前认为对心肌炎有诊断价值的血清酶是()
A. 乳酸脱氢酶(LDH)增高B. 肌酸激酶(CK)增高C. 谷草转氨酶(GOT)增高D. LDH增高E. CK-MB增高
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在估算浓水结垢倾向时,LSI适用于()。
A . A、苦咸水;
B . B、海水;
C . C、二者兼适用;
D . D、二者兼不适用
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ABB标准I/O板提供的常用信号处理不包括()。
A.数字输入DI、数字输出DO
B.模拟输入AI、模拟输出AO
C.输送链跟踪
D.标准I/O板有DSQC651和DSQC652
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测量回路中有短路或断路点仪表盘上()。
A.没变化
B.不指示或不稳定
C.变大
D.变小
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中国茶叶按制作季节可分为()。
A.春茶
B.夏茶
C.秋茶
D.冬茶
E.雨茶
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ZYJ7型外锁闭道岔尖轨、心轨第一牵引点处尖轨与基本轨间有4mm以上间隙,道岔不能锁闭和接通道岔表示。
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空气阻力分为()。
A.形状阻力 B.干扰阻力 C.内循环阻力 D.诱导阻力 E.摩擦阻力
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对破产企业特定财产享有担保权利的债权人,可对该特定财产优先受偿,债权人的这种权利称为()。
A.取回权
B.撤销权
C.别除权
D.追回权
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SECTION B PASSAGESDirections: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.听力原文: What makes it rain? Rain falls from clouds for the same reason anything falls to Earth. The Earth's gravity pulls it. But every cloud is made of water droplets or ice crystals. Why doesn't rain or snow fall constantly from all clouds? The droplets or ice crystals in clouds are exceedingly small. The effect of gravity on them is minute. Air currents move and lift droplets so that the net downward displacement is zero, even though the droplets are in constant motion. Droplets and ice crystals behave somewhat like dust in the air made visible in a shaft of sunlight. To the casual ob-server, dust seems to act in a totally random fashion, moving about chaotically without fixed direction. But in fact dust particles are much larger than water droplets and they finally fall. The cloud droplet of average size is only 1/2500 inch in diameter. It is so small that it would take sixteen hours to fall a mile in perfectly still air, and it does not fall out of moving air at all. Only when the droplet grows to a diameter of 1/125 inch or larger can it fall from the cloud. The average raindrop contains a million times as much water as a tiny cloud droplet. The growth of a cloud droplet to a size large enough to fall out is the cause of rain and other forms of precipitation. This important growth process is called 'coalescence'What is the main topic of the passage?A.The mechanics of rain.B.The climate of North America.C.How gravity affects air current.D.Types of clouds.
A.听力原文:B.C.TheD.B.TheE.C.HowF.D.TypesG.
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以下具有抗真菌疗效是()
A.咪康唑
B.5-氟胞嘧啶
C.大蒜
D.苯甲酸
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《中华人民共和国消防法》(简称《消防法》)开始施行时间是()。 ①1998年9月1日②1989年8月1日③1978年9月1日④2001年8月1日
《中华人民共和国消防法》(简称《消防法》)开始施行时间是()。
①1998年9月1日②1989年8月1日③1978年9月1日④2001年8月1日
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