-Please put the kitchen waste in the green garbage bag（垃圾袋）.-
A. I will.
B. Thank you.
C. No problem.
D. Of course.
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-The radio is too loud. Could you please turn it down?-
A. Please forgive me.
B. That's all right.
C. I could.
D. OK.
-What do you plan to do reduce air pollution（空气污染）?-
A. I'll drive to work everday.
B. I'll ride my bike more.
C. I'll buy goods shipped from afar.
D. I'll make holiday in fareaway places.
某工程为砖大放脚条形基础，基础底宽720mm，垫层底宽920mm，挖土深度1.8m，基础总长度为100m，根据土方开挖方案从垫层边算起的工作面宽度为250mm，边坡系数0.2，则开挖土方量为（）m3
A. 385.2
B. 284.4
C. 349.2
D. 320.4
某基槽开挖土方，自然地面标高为-0.8m，槽底标高-4.8m，槽底短边宽4m，槽顶短边宽5m，则土方边坡坡度为（）
A. 0.125
B. 1:0.125
C. 0.25
D. 1:0.25
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