快速冻结的时间为()。
A.3-20min
B.30-100min
C.120-1200min
D.200-1000min
参考答案:A
— What do you think of our school, Thomas?
— Terrific! It is a school _______ everybody tries his best to improve himself and keep up with others.
A.which
B.when
C.that
D.where
三碘苯甲酸