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搜题
【单选题】
三相负载不对称时应采用的供电( )。A.
△形连接并加装中线
B.
Y形连接
C.
Y形连接并加装中线
D.
Y形连接并在中线上加装熔断器
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】____ion(钠离子)
【简答题】手动变速器同步器锁环内锥面磨损检查时,可将锁环套装在相应齿轮的外锥面上测量锁环端面与齿圈之间的距离,一般应不小于___________mm。
【单选题】我国中等收入阶层人数已达3亿，占全球中等收入群体的30%。
A.
China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.
China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.
China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.
D.
China's mid-income class amounted to 3000 million, accounting for 30% of the middle-income group globally.
【单选题】手动变速器同步器锁环内锥面磨损检查时,可将锁环套装在相应齿轮的外锥面上测量锁环端面与齿圈之间的距离,一般应不小于()mm。
A.
0.1
B.
0.3
C.
0. 8
D.
1
【判断题】用指针式万用表测某晶体二极管的正向电阻时,插在万用表标有“+”号的插孔中的测试表笔(通常是红色表笔)所连接的二极管的管脚是二极管的阳极,另一个极是阴极。
A.
正确
B.
错误
【多选题】初产妇，25岁妊娠39周，宫口开全，抬头披露已1小时无进展，行会阴左侧切开，顺利娩出一男婴，体重3.4kg，8分钟后胎盘娩出，检查胎盘胎膜完整，会阴伤口外缝3针，产后在产房观察2小时，阴道出血不多。产后体格检查：T37.5℃，P60次／分，R18次／分，BP120/70mmHg，实验室检查：WBC17×10L（产后第一天）。产后出现白细胞增高，体温升高现象的正确解释是（）。
A.
产程中过度疲劳有关
B.
一般24小时后可降至正常
C.
产程中存在感染
D.
及时应用抗生素
E.
属产后正常现象，一般无需处理
【单选题】我国中等收入阶层人数已达 3 亿,占全球中等收入群体的 30% 。
A.
China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.
China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.
China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.
D.
China's mid-income class has amounted to 30 million, accounting for 30% of the middle-income group globally.
【单选题】手动变速器同步器锁环内锥面磨损检查时，可将锁环套装在相应齿轮的外锥面上测量锁环端面与齿圈之间的距离，一般应不小于()mm。
A.
0.1
B.
0.3
C.
0.8
D.
1.0
【单选题】我国中等收入阶层人数已达3亿,占全球中等收入群体的30%。
A.
China's mid-income class has reached 300 million, accounting for 30% of the middle-income group globally.
B.
China's mid-income class has reached 3 billion, accounting for 30% of the middle-income group globally.
C.
China's mid-income class amounted to 30 million, accounting for 30% of the middle-income group globally.
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