甲、乙两个同学都是近视眼,甲视力0.4,乙视力0.8。则通常情况下,____(选填“甲” 或“乙”)眼睛的晶状体更厚;他们要矫正视力,____配戴的近视眼镜度数更高,透镜的焦距更____。
内环境的稳态是指( )
“When____ (meet) bad people, don't be afraid.” Father told me.