Tài liệu về Đề thi INTERNATIONAL BIOLOGY OLYMPIAD lần thứ 21
GENERAL INSTRUCTIONS
THEORETICAL TEST:PART A
1. Open the envelope after the start bell rings.
2. A set of questions and an answer sheet are in the envelope.
3. Write your 4-digit student code in every student code box.
4. Mark only one correct answer with “” on the Answer Sheet clearly, as shown below.