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一种细菌半径是﹣0.000 0208米,将﹣0.000 0208用科学记数法表示为   .

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12AB:0:0:CD30::/60  12AB:0:0:CD3/60  12AB::CD30/60  12AB::CD3/60  
1100 0000 0100 0000 0000 0000 0000 0000  1 100 0000 0000 0000 0000 00000000 0000  1011 1111 0000 0000 0000 0000 0000 0000  0111 1111 1000 0000 0000 0000 0000 0000  
0000:0000:0000:0000:0000:FFFF:1234:1180  0000:0000:0000:1111:1111:FFFF:1234:1180  0000:0000:FFFF:FFFF:FFFF:FFFF:1234:1180  FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:1234:1180  
12CD:0:0:FF30::/60  12CD:0:0:FF3/60  12CD::FF30/60  12CD::FF30::/60  
0000H~0FFFFH  0000H~3FFFH  0000H~7FFFH  0000H~03FFH  
33AB:0:0:CD30:/60  33AB:0:0:CD3/60  33AB∷CD30/60  33AB∷CD3/60  
当phone为字符串0000-0000时显示空值  当phone为空值时显示0000-0000  判断phone和字符串0000-0000是否相等  将phone的全部内容替换为0000-0000  
33AB:0:0:CD30:/60  33AB:0:0:CD3/60  33AB:CD30/60  33AB:CD3/60  
0xA0000C0E  0xA0000C0F  0x00000000  0xC0000C01  
0000 0101 1000 0110  0110 1000 0101 0000  0101 1000 0110 0000  0000 0110 1000 0101  
0000:0000:0000:1111:111C:FFFF:1234:1140  0000:0000:FFFF:FFFF:FFFF:FFFF:1234:1140  0000:0000:0000:0000:0000:FFFF:1234:1140  FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:1234:1140  
2001:410:0:1:0:0:0:45FF  2001:41:0:1:0:0:0:45FF  2001:410:0:1::45FF  2001:410::1::45FF  
0000:0000:0000:0000:0000:FFFF://1234:1180  0000:0000:0000:1111:111t:FFFF://1234:1180  0000:0000:FFFF://FFFF://FFFF://FFFF://1234:1180  FFFF://FFFF://FFFF://FFFF://FFFF://FFFF://1234:1180  
12CD:0:0:FF30∷/60  12CD:0:0:FF3/60  12CD∷FF30/60  12CD∷FF30∷/60  
12AB:0:0:CD30::/60  12AB:0:0:CD3/60  12AB::CD30/60  12AB::CD3/60  
0000:0000:0000:0000:0000:FFFF://1234:1180  0000:0000:0000:1111:111t:FFFF://1234:1180  0000:0000:FFFF://FFFF://FFFF://FFFF://1234:1180  FFFF://FFFF://FFFF://FFFF://FFFF://FFFF://1234:1180  

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