实现从线划地图到数字信息转换的过程叫（）。
参考答案：地图数字化
Some experts think that language learning is much________for children as their tongues are more flexible.[ ]
A. easy
B. easier
C. easily
D. more easily
生长激素分泌不足导致（）
A.手足抽搦症
B.尿崩症
C.呆小症
D.侏儒症
E.黏液性水肿
