—Sure. I'm confident about ____.
A:me
B:him
C:myself
D:himself
黑板上写着8,9,10,11,12,13,14七个数,每次任意擦去两个数,再写上这两个数的和减1.例如,擦掉9和13,要写上21.经过几次后,黑板上就会只剩下一个数,这个数是____ .
某小组在探究“小鼠走迷宫获取食物的学习行为”时设计了如下图所示的实验:
They didn't continue to climb up the mountain __________ the bad weather.