What should Mr. Black do before having the gastroscopy?
A. Smoke as little as possible.
B. Empty the stomach.
C. Drink a lot of water.
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When is Mr. Black supposed to come tomorrow?
A. 6 a.m.
B. 2 p.m.
C. 8 a.m.
When will Mr. Black get the result?
A. In several days.
B. Immediately.
C. The day after tomorrow.
What will be sent to the pathology laboratory?
A. Blood sample.
B. Gastric fluid sample.
C. Biopsy sample.
Which diseases cause the leading mortality in the world?
A. pneumonia
B. cancer
C. diabetes
D. appendicitis
E. cardiovascular diseases
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