用一个平面去截一个正方体,把正方体分成( )部分;用两个平面最多可以把正方体分成 ( )部
2,4
_____ they arrived early at the airport, they never missed the flight. [ ]
A. If
B. because
C. As soon as
D. although
痛风病人不宜食用果糖的原因是()。
A.诱发糖尿病
B.发生低血糖
C.加速嘌呤分解
D.造成血糖波动
E.加速嘌呤合成