Some experts believed, and _______ did we, kids who reach adolescence still need at least nine hours' sleeping.
A：that
B：as
C：neither
D：so
“是挫折使骨头坚如燧石；是挫折使软骨变成肌肉；是挫折使人战无不胜。”它阐明的道理是（ ）
