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【单选题】
AT89C51 有( ) 个中断源。A.
1
B.
2
C.
3
D.
5
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
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【多选题】依据2015年《四川省建设工程工程量清单计价定额》规定，以下对现浇钢筋混凝土墙、板模板及支架工程量计算规则描述正确的是( )。
A.
现浇钢筋混凝土悬挑板（挑檐、雨篷、阳台）按图示外挑部分尺寸的水平投影面积计算
B.
现浇钢筋混凝土悬挑板挑出墙外的牛腿梁及板边模板不另计算
C.
现浇钢筋混凝土楼梯，以图示露明尺寸的水平投影面积计算，不扣除小于300 mm楼梯井所占面积
D.
现浇钢筋混凝土楼梯的踏步、踏步板平台梁等侧面模板，不另计算
E.
现浇混凝土台阶，按图示台阶尺寸的水平投影面积计算，台阶端头两侧不另计算模板面积
【简答题】You must cut down your price by 10%; otherwise we will place our orders elsewhere.
【简答题】Sentences arrangement. 1. If you are prepared to grant us a discount of 10% for a quantity of 200, we would agree to your offer. 2.However, the price level in your quotation is too high for this marke...
【单选题】二级抗震KL箍筋加密区是（ ）
A.
大于等于2.0h b
B.
大于等于500
C.
大于等于2.0h b 且大于等于500
D.
大于等于1.5h b 且大于等于500
【简答题】混凝土楼梯、台阶的模板及支架清单工程量,按楼梯或台阶的__________计算。
【单选题】The buyer for a large chemical company responds to your price by telling you:"The
A.
mpetition is very strong and you'll have to do better than that."Do you________?
B.
offer to cut your price in exchange for the order
C.
ask him how much your price is above the others
D.
suggest that he accepts the other offers
E.
ask to see the other offers
F.
ask him what he likes about your proposal
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