木制琵琶桶

有一岩石边坡，坡率1：1，坡高12m，存在一条夹泥的结构面，如图，已知单位长度滑动土体重量为740kN/m，结构面倾角35°，结构面内夹层c=25kPa，ψ=18°，在夹层中存在静水头为8m的地下水，问该岩坡的抗滑稳定系数最接近下列哪一选项（）

A.1.94

B.1.48

C.1.27

D.1.12

用适当的词填空，补全下面的短文。

     I usually 1_______(起床) at 2_______. I have milk and bread for breakfast. After breakfast, I 3_______

(洗澡) and then I 4_______(上学) by bus. I get to school at 5_______ I have five classes in the morning.

And then I have lunch at 6________. In the afternoon I have two classes. I 7_______(回家) at 8_______.

I get home at 4:30 p.m. I 9 _______(吃晚饭) at about 10_______. After dinner, I 11_______(做作业). I

12_______(睡觉) at 13_______. My life is busy but not exciting.

用所给词的适当形式填空。

1. My sister is a_____ girl. She does everything _____ (care) .

2. There are a few _____ (ladder)under the apple trees.

3. Danny was _____ (injure) yesterday.

4. I heard him _____ (go) out just now.

5. Look! Danny _____ (lie) on the floor.

这个标志是何含义？（）

A．边防检查

B．禁止通行

C．海关检查

D．停车检查

改变全矿井通风系统时，必须编制通风设计及（），由企业技术负责人审批。