How can the hold-and-wait condition be prevented?
举一反三
- How can the circular-wait condition be prevented?
- How can we get into a hold?
- How long can the distinction between killing and letting die ______ out A: hold off B: held C: hold D: holding
- 4. How is it treated and prevented?
- Paragraph 1（） A: How is cancer treated B: Does cancer always cause pain C: Can cancer be prevented D: What is cancer E: How common is cancer F: What causes cancer