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【判断题】
( )保护接地就是将正常情况下不带电的金属外壳与大地用导线连接A.
正确
B.
错误
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举一反三
【简答题】78÷0.3÷0.2=______÷______．0.78÷0.3÷0.2=______÷______．
【简答题】把不对的地方改正确． （1）0.78×1.32-0.32 =0.78×1 =0.78． （2）3.5+2.5×1.42 =6×1.42 =8.52．
【简答题】Soon after she was assigned the project, she went with
her family to the local McDonald's on a cold . Just when
they were standing in line, waiting to , she smelled a horrible "dirty body" smell. Two ...
【简答题】图示的元件为()位()通换向阀
【简答题】A new research study has found that, ____1______ what parents might believe, there is an enormous gap between what they think their children are doing online and what is ___2_____ happening. In one pa...
【简答题】（1）0.78+0.78+0.78+0.78改写成简便算式是______，这个算式表示的意义是______，也表示______． （2）5小时24分=______小时2.3小时=______小时______分 （3）12.53里面有______个0.01，125个0.1是______ （4）8.789保留整数是______，保留一位小数是______，精确到百分位是______ （5）20÷6的商...
【简答题】78×5 这个算式表示：______ 5×0.78 这个算式表示：______ 5.34÷2.1 这个算式表示：______．
【简答题】Soon after she was assigned the project, she went with her family to the _______ on a cold _________ . Just when they were standing in line, waiting to__________ , she smelled _________ . Two poor hom...
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