某边坡岩体级别为Ⅳ类，容重为22kN/m3，岩体较完整，单轴抗压强度为6．5MPa，有一组结构面通过坡脚，结构面倾角为60°，内摩擦角为25°，内聚力为20kPa，挡墙与岩体的摩擦角为15°，岩体等效内摩擦角为46°，挡墙直立，墙背岩体水平，地表无外荷载，对支护结构变形需严格控制，岩体泊松比为0.25，坡高10m，按《建筑边坡工程技术规范》（GB50330-2002）计算，修正后的侧佝岩石压力宜取（）。
A.363kN
B.236kN
C.180kN
D.165kN
参考答案：B
| Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation. About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time！ With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag. |
What did the writer want to do when his mother came home
A．To introduce Stephanie to her.
B．To prevent her from seeing his painting.
C．To put the materials back in the yard.
D．To show his artwork to her.