According to Rice, what must Asia-Pacific nations do to maintain economic prosperity？
A. They must cooperate with one another.
B. They must further promote trade relationships.
C. They must combat security threats such as terrorism.
D. They must come up with effective trade plans in the APEC forum.
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What does Coffey mean by saying "education can be 'a proxy for many things' "？
A. Education level can help measure people's mental capacity.
B. Education is the direct factor preventing mental decline.
C. Well-educated people are often healthy.
D. Education is related to people's overall health via other things.
The middle tier of members in the proposed structural changes of the U. N. would ______.
A. have a veto
B. be permanent
C. be elected again every four years
D. comprise 9 members
Which of the following is TRUE about the structure of Security Council？
A. It may lead to chaos of world order.
B. There has been no attempt to change it.
Countries often unite to ask for permanent seats.
D. There are always negative forces for each attempt to change it.
How do archaeologists know that Neolithic men relied considerably on flint？
A. They have found many fingerprints on tools made of it.
B. They have found holes that were dug with it.
C. They have discovered many tools made of it.
D. They have discovered it beside relics of Neolithic men.
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