The two-year-old boy can count _______ one _______ one hundred.
A:from; to
B:between; to
C:in; to
D:from; and
写关于一句珍惜时间的名言名句。
— Sure.
如图,AB是半圆的直径,点D是弧AC的中点,∠ABC=50°,则∠DAB的度数是____.