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题目内容
（兰州大学大学英语（3））
22.
(4分)______ it or not ,his discovery has created a stir in scientific circles.
A. Believe
B. To believe
C. Believing
D. Believed
(4分)______ it or not ,his discovery has created a stir in scientific circles.
A. Believe
B. To believe
C. Believing
D. Believed
参考答案
