单项选择题

A．They should make international conventions about agreements.
B．They should join the international battle with terrorism.
C．They should demonstrate APEC’s unmistakable resolve.
D．They should enhance the security of their people.
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单项选择题
A．There will be heavy fog in all areas.B．There will be heavy rain by midnight.C．There will be heavy fog in the east.D．There will be fog in all areas by midnight.
A．There will be heavy fog in all areas.
B．There will be heavy rain by midnight.
C．There will be heavy fog in the east.
D．There will be fog in all areas by midnight.
单项选择题
A．TD-SCDMA is less mature than the other two technologies.B．TD-SCDMA hasn’t made great progress in the 3G field tests.C．TD-SCDMA does a good job in the 3G field tests.D．TD-SCDMA developed domestic hasn’t been mature enough.
A．TD-SCDMA is less mature than the other two technologies.
B．TD-SCDMA hasn’t made great progress in the 3G field tests.
C．TD-SCDMA does a good job in the 3G field tests.
D．TD-SCDMA developed domestic hasn’t been mature enough.
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