( ) 1. When Dr Gibbs said "weed out the weaker trees early on", what did he mean?
( ) 2. What can we know from the passage?
( ) 3. The writer wants to change his prayer, hoping that .
( ) 4. Which is the best title for the passage?
A
( ) 2. What can we know from the passage?
B
( ) 3. The writer wants to change his prayer, hoping that .
C
( ) 4. Which is the best title for the passage?
B
答案：1. A
2. B
3. C
4. B
2. B
3. C
4. B