问题
选择题
—_____ is it from our school to Bridge School?
— Only 15 _____. You can use my bicycle.[ ]
A. How long; minutes ride
B. How far; minutes ride
C. How long; minutes' ride
D. How far; minutes' ride
答案
答案：D
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C(g)+D(g)正反应速率增大的措施是 ( )