PA31 PLT EXECUTES EMER STOP FOR D328 ON CROSSING TXWY AT ORD.

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AT XA38 WE HAD A NEAR MISS ON THE TXWY AT ORD. WE WERE GIVEN TAXI INSTRUCTIONS TO RWY 32L AT T10. WHILE ON TXWY A; WE WERE INSTRUCTED BY GND CTL TO TURN L ON A7. ABOUT THE TIME WE WERE TURNING L ON A7; WE WERE CLRED TO TAXI ON A7 WITH A L ON T TO T10. AT THE SAME TIME WE WERE TOLD TO SWITCH TO TWR FREQUENCY AND MONITOR THAT FREQUENCY. TO GET TO T FROM A7 WE WOULD HAVE TO CROSS B. JUST PRIOR TO CROSSING B; THE PLT IN THE RIGHT SEAT NOT FLYING SAID 'STOP!' BEFORE I COULD REACT; THE PNF HAD APPLIED MAXIMUM BRAKES. FROM OUR RIGHT I SAW THE AIRLINER ALSO CAME TO A STOP. THE HIGH-WING; TWIN JET (POSSIBLY A D328) L WING WAS BETWEEN 5 AND 10 FT FROM OUR NOSE. THE TWIN JET THEN TAXIED ACROSS IN FRONT OF US. WE PROCEEDED ACROSS B TO T AND THEN T10 AT RWY 32L FOR DEP. NEITHER PLT IN OUR ACFT SAW THE OTHER ACFT UNTIL THE LAST MOMENT. THE PLT NOT FLYING DID SEE IT BEFORE I DID. IT APPEARED THAT THE AIRLINE JET DID NOT HAVE A TAXI LIGHT ON. I DID NOTICE THE OTHER ACFT DID HAVE ITS POS LIGHTS ON. WE WERE NOT NOTIFIED OF ANY OTHER TAXIING TFC WHEN TOLD TO MONITOR TWR FREQUENCY. I BELIEVE THE OTHER ACFT WAS AN INBOUND AND SO ON A DIFFERENT FREQUENCY. I HEARD NO TRANSMISSIONS TO OR FROM THE OTHER ACFT. THE TIME GND HANDS OFF TO TWR IS A CRITICAL TIME. SINCE OTHER TAXIING ACFT MAY BE ON DIFFERENT FREQUENCIES; IT APPEARS THAT THE ONLY WAY TO ENSURE THERE IS NOT A CONFLICTING ACFT; IS TO LOOK CAREFULLY. AT NIGHT THIS IS ESPECIALLY CRITICAL. ONE MUST NOT ASSUME A CLRNC WILL RELEASE FROM THE RESPONSIBILITY AND NECESSITY OF SEE AND AVOID.