通常认为地基土层(正常固结土层)在自重应力作用下压缩已稳定,因此,地基沉降的原因主要是建筑物荷载在地基中产生的附加应力。
参考答案:对
I’ve heard that the wood tower was built more than 1,000 years ago, so I think it is worthy ________.
A.visiting
B.to visit
C.being visited
D.to be visited