—What's wrong with you, Eric? You look tired.
—I __________ to prepare for the final exam last night.
A:picked up
B:woke up
C:stayed up
D:put up
下列汉字起笔完全相同的一项是( )。
鞋的尺码通常用“码”或“厘米”作单位,它们之间的换算关系是:b=2a-10。(b表示码数,a表示厘米数)根据关系,37码的鞋子是____厘米。