对日本的自然地理特征，表述不正确的是：[ ]
A、地狭人稠
B、多火山、地震
C、多优良港湾，海岸线曲折
D、河流长，水量小，流速急
答案：D
The boy _____ so much time on the computer games that he didn’t have enough time to study. [ ]
A. cost
B. spent
C. paid
D. took
场地平面控制网有几种网形，布网原则是什么？
