[单选题]纯电容元件在电路中（）电能。( )-我要搜题网

[填空题]Language learning begins with listening. Individual
children vary greatly in the amount of listening they do after 63. ______
they start speaking, and late starters are often long listeners.
Most children will "obey" spoken instructions some time
before they can speak, though the word obey is hardly
accurate like a description of the eager and delighted 64. ______
cooperation usually shown by the child. Before they can
speak, many children will ask questions in gesture and by 65. ______
making questioning noises. Any attempt to trace the
development from the noises babies make to their first
spoken words lead to considerable difficulties. It is agreed 66. ______
they enjoy making noises, and that during the first 67. ______
few months one or two noise sort themselves out as 68. ______
particular indicative of delight, distress, sociability, and so 69. ______
on. But

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[单项选择]瑞氏染色后发现血涂片染色偏红，解决的方法是（）
A. 再加缓冲液
B. 用流水冲洗
C. 加甲醇
D. 加染料和缓冲液混合液
E. 更换缓冲液后重新染色

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[单选题]进入岗位前按要求进行( )检查。
A.环境
B.地面
C.安全防护设施
D.设备

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[单项选择]正常人每天的唾液分泌量约为（）.
A. 200～300ml
B. 300～500ml
C. 550～700ml
D. 800～990ml
E. 1000～1500ml

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[单选题]货一类为（）轴，收费标准（）元/公里。
A.2 0.450
B.2 0.4
C.1 0.5
D.1 0.55

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[单选题]以下哪个数据库服务与mongodb兼容？
A.AWS RDS
B.elasticache
C.AWS DynamoDB
D.AWS DocumentDB

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[单选题]矿山、金属冶炼建设项目和用于生产、储存、装卸危险物品的建设项目的施工单位必须按照批准的( )设计施工,并对其工程质量负责。
A.安全装备
B.安全设施
C.安全设备
D.安全工程

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[单项选择]预防霍乱较为完整的措施是（）。
A. 隔离、治疗病人
B. 流行季节预防服药
C. 流行季节预防接种
D. 隔离治疗病人，切断传播途径，疫区人群进行预防注射
E. 封锁疫点、疫区

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[多选题]在我国境内，期货市场建立了（）“五位一体”的期货监管协调工作机制。
A.期货交易所
B.中国期货业协会。
C.中国期货市场监控中心
D.证监会及其地方派出机构

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[单选题]个人保安线是用于保护工作人员防止()的接地线。
A.感应电伤害
B.跨步电压
C.低压触电
D.直流点击

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[简答题]Questions 47 to 51 are based on the following passage. For many families, figuring out how many after-school activities are too many is a struggle. For parents who fear they’re "over-scheduling" their children, a new study carries a comforting message. The paper, published last week by the Society for Research in Child Development, is the first to take a data-driven look at the issue-and whether being so busy is really a bad thing. The study suggests the phenomenon is more isolated than media reports suggest: in fact. 40,七 of children(ages 5-18) are engaged in no activities, typical kids spend just five hours a week in structured activities, and very few children-3-6%-spend 20 hours a week. On average, most kids spend far more time watching TV and playing games. And for kids who’re extremely busy, there’s also good news: the more activities they do, the better kids perform on measures of educational achievement and psychological adjustment. "This popular concern [about over-scheduling

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[判断题]808.当给水水箱的进、出水管共管时,出水管上应设止回阀。
A.正确
B.错误

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[单选题]纯电容元件在电路中（）电能。( )
A. 储存
B. 分配
C. 消耗

热门试题:

[单选题]纯电容元件在电路中（）电能。( )A. 储存B. 分配C. 消耗

热门试题:

[单选题]纯电容元件在电路中（）电能。( )
A. 储存
B. 分配
C. 消耗