单项选择题

The students take a ______ test in March, and tile main exam is July.

A．previous
B．preliminary
C．preceded
D．elementary
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单项选择题
To ______ the structural imbalances in the budget, and also in the economy the Administration has given its support to a constitutional amendment.
A．relinquish
B．remedy
C．compensate
D．redress
单项选择题
Although most universities in the United States are on a semester system which offers classes in the fall and spring, some schools ______ a quarter system comprised of fall, winter, and summer quarters.
A．manipulate
B．stipulate
C．regulate
D．observe
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