单项选择题

What did Group A do in their program

A．They stepped up and down on a bench every day.
B．The didn't do any exercise.
C．They rode on an exercycle every day.
D．They pushed handle bars every day.

<上一题目录下一题>

热门试题

单项选择题

When were pulse rates taken

A．After every exercise period.
B．Every time the ratio of active riding was increased.
C．Every day.
D．After each step-test.

单项选择题

The family in the western world

A．has changed a lot during the last two centuries
B．hasn't changed at all during the last two centuries
C．has changed a little during the last two centuries
D．has become bigger and bigger