关于围岩松散压力下列叙述错误的是（）。
A、对于一般裂隙岩体中的深埋隧道，作用在支护结构上的围岩松散压力远远小于其上覆岩层自重所造成的压力。这可用围岩的“成拱作用”来解释。
B、“压力拱”是由变形阶段、松动阶段、坍塌阶段和成拱阶段四个过程形成的。
C、作用在支护结构上的松散压力是均匀分布的。
D、松散压力的大小与隧道尺寸、开挖方法有关。
参考答案：C
| 根据句意或首字母完成句子，使句子意思完整,语法正确。 1. Mrs Green has many different kinds of plants. She _____ them every day and lit the fire for breakfast. 2. When l was young, I often chopped _____. 3. My father is a farmer. He works on a _____. 4. You'll have an important meeting today. You'd better wear a business s _____ . 5. It's too hot today. We must put the meat into the r _____. |