9. Cancer is 仅次于) heartdisease as a cause of death Key: second only to 10. Though you stay in the sea for weeks, you will not (与外界失去联系) Key: lose contact with the outside world9. Cancer is________________ (仅次于） heartdisease as a cause of death. Key: second only to 10. Though you stay in the sea for weeks, you will not ________________ ___________(与外界失去联系）. Key: lose contact with the outside world