单项选择题

A．Decaffeinated coffee may help prevent heart disease.
B．Coffee does not necessarily cause heart disease.
C．Coffee has less caffeine than soda.
D．Caffeine can be used as headache remedy.
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单项选择题
A．She will not go to the park.B．She will go to the park.C．She likes to take a walk.D．She is too tired to take a walk.
A．She will not go to the park.
B．She will go to the park.
C．She likes to take a walk.
D．She is too tired to take a walk.
单项选择题
A．The helicopter can fly forwards, backwards, up, down, and sideways.B．The helicopter can hover in the air.C．The helicopter can land and take off from a flat roof.D．The helicopter has a single-bladed rotor on its top.
A．The helicopter can fly forwards, backwards, up, down, and sideways.
B．The helicopter can hover in the air.
C．The helicopter can land and take off from a flat roof.
D．The helicopter has a single-bladed rotor on its top.
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