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复线区段( )供电臂( )通过开关设备(或者电连接线)实行并联供电。
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【简答题】能用简便方法的用简便方法. (1)6502+672÷28×17 (2)3.4×2.79+0.21×3.4 (3)( 5 12 + 1 9 + 3 8 )×72 (4) [( 1 2 - 1 5 )÷ 3 4 ]÷ 3 5 .
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【多选题】What are the symptoms of coronavirus?
A.
B.
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【简答题】计算,能简便的用简便方法. 13 14 ×13+ 13 14 8 15 × 8 9 + 8 9 × 7 15 23× 14 39 +14× 16 39 6×[ 8 9 -( 1 2 - 1 6 )] ( 7 8 + 1 6 + 2 3 )×48 ( 1 4 + 1 5 )×20.
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【多选题】What are the symptoms of coronavirus?
A.
have a fever
B.
have a dry cough
C.
feel tired and weak
D.
have difficulty breathing
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【简答题】能用简便方法的要用简便方法. ①58-16÷ 4 5 ② 2 9 - 6 15 × 2 9 ③62.5÷2.5÷4 ④8160÷24-36×2.5 ⑤ 36×( 5 6 + 1 12 - 1 3 ) ⑥ 3.5÷[1-(0.4+ 1 4 )] .
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【简答题】我会用简便方法计算. 3 4 × 1 5 + 3 4 × 2 5 +0.75× 3 5 - 3 4 .
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【单选题】以下物质,哪些是食品防腐剂
A.
对羟基苯甲酸酯
B.
苯乙酸
C.
碳酸氢钠
D.
酒石酸
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【简答题】用简便方法计算. 5 4 × 1 2 × 3 5 3 7 × 1 5 × 7 9 18× 2 3 × 5 6 20 51 × 17 30 ×9 11 36 ×27× 4 33 1 5 6 × 2 3 × 3 22 .
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【简答题】用简便方法计算. 25×1.25×32 17.625-(4.4+7 5 8 ) ( 1 15 + 2 17 )×15×17.
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【单选题】What is coronavirus?
A.
Coronaviruses are a whole family of viruses.
B.
They often cause any real clinical illness
C.
This new virus, like those other rogue viruses, probably was first transmitted to animals from humans.
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相关题目:
【简答题】能用简便方法的用简便方法. (1)6502+672÷28×17 (2)3.4×2.79+0.21×3.4 (3)( 5 12 + 1 9 + 3 8 )×72 (4) [( 1 2 - 1 5 )÷ 3 4 ]÷ 3 5 .
查看完整题目与答案
【多选题】What are the symptoms of coronavirus?
A.
B.
查看完整题目与答案
【简答题】计算,能简便的用简便方法. 13 14 ×13+ 13 14 8 15 × 8 9 + 8 9 × 7 15 23× 14 39 +14× 16 39 6×[ 8 9 -( 1 2 - 1 6 )] ( 7 8 + 1 6 + 2 3 )×48 ( 1 4 + 1 5 )×20.
查看完整题目与答案
【多选题】What are the symptoms of coronavirus?
A.
have a fever
B.
have a dry cough
C.
feel tired and weak
D.
have difficulty breathing
查看完整题目与答案
【简答题】能用简便方法的要用简便方法. ①58-16÷ 4 5 ② 2 9 - 6 15 × 2 9 ③62.5÷2.5÷4 ④8160÷24-36×2.5 ⑤ 36×( 5 6 + 1 12 - 1 3 ) ⑥ 3.5÷[1-(0.4+ 1 4 )] .
查看完整题目与答案
【简答题】我会用简便方法计算. 3 4 × 1 5 + 3 4 × 2 5 +0.75× 3 5 - 3 4 .
查看完整题目与答案
【单选题】以下物质,哪些是食品防腐剂
A.
对羟基苯甲酸酯
B.
苯乙酸
C.
碳酸氢钠
D.
酒石酸
查看完整题目与答案
【简答题】用简便方法计算. 5 4 × 1 2 × 3 5 3 7 × 1 5 × 7 9 18× 2 3 × 5 6 20 51 × 17 30 ×9 11 36 ×27× 4 33 1 5 6 × 2 3 × 3 22 .
查看完整题目与答案
【简答题】用简便方法计算. 25×1.25×32 17.625-(4.4+7 5 8 ) ( 1 15 + 2 17 )×15×17.
查看完整题目与答案
【单选题】What is coronavirus?
A.
Coronaviruses are a whole family of viruses.
B.
They often cause any real clinical illness
C.
This new virus, like those other rogue viruses, probably was first transmitted to animals from humans.
查看完整题目与答案