单项选择题

According to the passage, which of the following should be encouraged to enhance learning of math and science
1. Problem solving.
2. Actual research.
3. Repetitive in-class drills.
4. Group work.
5. Rote learning.

A．1 and 3.
B．1, 2 and 4.
C．4 and 5.
D．2, 3 and 5.

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单项选择题

A．may be removed from his present post in IraqB．may be appointed as the top U.S. commander in IraqC．is responsible for the prisoner abuse in IraqD．is in disagreement with the Pentagon

A．may be removed from his present post in Iraq
B．may be appointed as the top U.S. commander in Iraq
C．is responsible for the prisoner abuse in Iraq
D．is in disagreement with the Pentagon

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