下列哪一项不是我国土地资源开发利用中的主要问题?[ ]
A.耕地破坏,水土流失严重
B.草场超载,草质下降
C.过度开垦、放牧,引起土地荒漠化
D.土地价格过低
答案:D
— You ______ to the housing agency in time.
— OK, I’ll try my best.
A.are supposed to get
B.have supposed to get
C.are supposed to be got
D.supposed to get
热退火酸洗线在线轧机最大轧制力()KN。