更多“电压互感器的额定二次电压一般为（)V。A.220B.100C”相关的问题
中度脱水婴儿眼窝和前卤（）。
A.明显凹陷 B.无明显凹陷 C.凹陷不明显 D.不一定凹陷
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肩关节周围炎下列正确的是（）
A.外展外旋受限明显 B.内收受限多见 C.前屈受限 D.内旋受限 E.以上都不对
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根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。How to Make a Glo
根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 How to Make a Glodfish Live for Decades Believe it or not , a goldfish could live for 10—25 years ot longer if it’s given proper care .However , with normal care it usually lives for about 6 years . The Guinness Book of World Records mentions a goldfish named Tish that lived 43 years! ____小题1:__. Purchase the largest possible tank you can . While using a 20 liter tank is better for the fish than any kind of a fish bowl , at least 40 liters is necessary for quality of life a single fish . Chinese a tank with large surface area to increase the amount of oxygen in contact with the surface of the water. __小题2: Be sure that any decorations you choose aren’t hollow (harmful bacteria can grow inside ) and that they don’t have sharp edges . Provide your fish with different areas in the tank , such as an open area ideal for swimming and a hiding area . If you feed them at the same time every day , they will soon be waiting for you at that time and grow used to your presence . Add some equipment to increase oxygen into the water . __小题3: You can also have the current from a “waterfall” type filter help agitate (搅动) the water ‘s surface . Clean the tank at least once every two weeks , but more frequently is preferable due to the large amount of waste . __小题4: Feed the goldfish one to three times daily with food apecifically designed for goldfish . ___小题5: Give them only as much as they can eat in a few minutes , and clean any leftovers immediately. A.Provide mental and physical stimulation (刺激) for the fish . B.Be aware that goldfish will not eat below 50--55 °C (10--14°C). C.Here’s how to help your commpanion survive into the “ golden years ”. D.If you do need to catch your fish ,consider using a plastic container rather than a net . E.A small air pump can be necessary . F.How often you do this will depend on the size of you tank , the number of fish . G.If you choose to feed them more often , then reduce the size of the meals so you don’t overfeed.
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接待港、澳、台地区游客时，导游员需要注意哪几个方面？
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临时用电的配电屏应装设短路、过载保护装置和漏电保护器。（)
临时用电的配电屏应装设短路、过载保护装置和漏电保护器。()
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停电作业时，作业人员（包括所持的机具、材料、零部件等）与周围带电设备应保持规定的安全距离，下列说法正确的是（）。
A.220kv为3000mm B.110kv为1500mm C.25kv和35kv为1000mm D.10kv及以下为600mm
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关于S6800系列交换机说法错误的是（）
A.支持40G或100G上行接口
B.支持VXLAN/EVPN解决方案
C.支持FC/MACsec功能
D.有24口和48口款型可选
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用15钢制造凸轮，要求表面硬度高而心部具有高的韧性，应采用（）的热处理工艺。
A、渗碳+淬火+低温回火
B、退火
C、调质
D、表面淬火
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下列关于酸味调味品的叙述错误的是（）。
A.酸味具有缓甜减咸、增鲜降辣、去腥解腻的作用
B.酸可以促进钙质的吸收和使用
C.酸味可以帮助消化、刺激食欲
D.酸味一般不同于其他调味料一起使用而单独成味
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倾倒液体试剂时，瓶上标签应朝哪一个方向？（）
A . A、上方
B . B、下方
C . C、左方
D . D、右方
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在正态分布参数估计时， [mu1,sigma1,muci1, sigmaci1]=normfit(x,0.06) 的输出变量 mu1 与 [mu2,sigma2,muci2, sigmaci2]=normfit(x,0.1) 中输出的 mu2 相等。
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不需要调整图定跨局旅客列车开行的站场改造是几级施工？（）
A.一级
B.二级
C.三级
D.四级
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通常记录仪包括机械和电路两部分，其中电路部分包括（）。
A.电源、信号转换器、驱动电路
B.驱动马达、定位滑块
C.记录笔、笔架
D.机械传动滑块
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