This box is___ that one.
选择一项:
a. heavy than
b. as heavy as
c. heavier as
出自:理工英语1

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块