The three first-line examinations of improving the early diagnosis of gastric cancer are:

  • A: esophagogastroscopy,cytology of gastric juice,and barium meal X-ray
  • B: esophagogastroscopy,acid measure of gastric juice,and barium meal X-ray
  • C: esophagogastroscopy,occult blood test of feces,and barium meal X-ray
  • D: cytology of gastric juice,occult blood test of feces,and esophagogastroscopy
  • E: cytology of gastric juice,tetracycline fluorescence test,and barium meal X-ray

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