1. [单选题]成人头颈部占人体体表总面积(total area)的 （ ）
A. 12%
B. 6%
C. 9%
D. 3%
E. 15%
2. [单选题]From the passage, we can inter that
A. the author has a high opinion of the foundation
B. the author is surely a close friend of the Gates
C. the author believes Bill Gates is really a kind person
D. the author admires the medical knowledge of Bill Gates
3. [单选题]
A. decreaseB． bring
B. take
C. raise
