A：是故/学然后知不足
B：壮/有所用，幼/有所长
C：货/恶其弃于地也，不必/藏于己
D：故人/不独亲其亲，不独子/其子
I have a pencil box. It's blue. There are lots of things in it. I have a pen. It's red and long. I like it. I have three pencils. They are short. I have a ruler. It's big. I have an eraser. It's small.
人体细胞中有23对染色体，卵细胞中染色体数目是（ ）
三国时期，蜀军欲与魏军决战。魏将司马懿紧闭城门不应战，诸葛亮为激怒司马懿送去妇女衣裙进行羞辱，司马懿仍旧按兵不动。司马懿这一做法说明（ ）
①他缺乏勇气，不懂得维护人格很重要的道理
②他的人格尊严受到了侵犯
③他临辱不惊，遇辱不怒，是豁达大度的表现
④适度自尊有助于做出正确的行动
— ?
— I have a cold and headache.
