哪些可能影响成本：（）A、企业的生产过程 B、企业的管理过程 C、办公系统 D、管理制度

（6分）目前人类发现和合成的几千万种物质仅仅是由一百多种元素组成，下图所示是元素周期表第三周期元素及其组成的部分物质和用途。

（1）钠蒸气灯和镁闪光灯的发光原理不同。镁在通电之后与空气中的氧气反应产生强光，该过程属于  变化（填“物理”或“化学”）。

（2）红宝石的主要成分是氧化铝（Al₂O₃），水晶的主要成分是二氧化硅(SiO₂)，氧化铝和二氧化硅均属于  （填序号）。

A．单质          B．化合物           C．有机物     

（3）17世纪中叶，人们开始使用磷酸盐矿石生产化肥，下列物质属于磷肥的是      （填序号）。

A．KNO₃         B．CO(NH₂)₂       C．Ca(H₂PO₄)₂

（4）青霉素（C₁₆H₁₈N₂O₄S）是第一种能够治疗人类疾病的抗生素，青霉素由       种元素组成。

（5）消毒液的有效成分是次氯酸钠（NaClO），其中氯元素的化合价为_________ 。

（6） 氩弧焊是使用氩气作为保护气体的一种焊接技术，氩气可作保护气的原因是      。

某电阻两端加5V电压时，流过电阻的电流是1A，此电阻的大小为 ______Ω；若电压增加10V，其电阻的阻值为 ______Ω，电流为 ______A．

短文改错（共10小题；每小题1分，满分10分）

注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。

I was shopping at the local supermarket which I selected some eggs and a package of bacon. As I put the items in the front of the cashier, a drunken man stand behind me watched. While the cashier is packing up the things, the drunken man calm stated, “You must be single.” I was a bit surprised so I indeed didn’t have a boyfriend. I looked at the things I bought and saw something particularly unusual that could have indicated my personal situation. I became extremely curious and said, “What did you know that?” A drunken man replied, “Because you’re ugly.” I became speechless. How stupid was to question a drunken man!

Andrew owns shares in ABC Plc, whose accounts were audited by Carla. The accounts of the financial year, which ended on 31 December 2010, showed that ABC Plc had made a profit of EUR1,000,000 when it should have shown a loss of EUR500,000. After seeing those accounts, Andrew bought more shares in ABC plc. Andrew later realised that the new shares he had bought were in fact worth much less than what he had paid for them.Required:Advise Carla whether she owes a duty of care to Andrew. (10 marks)

栅格模型的分析功能包括( )。

A．不连续表面的分析、多层叠合、成片的算术运算

B．不连续表面的分析、多层叠合、层与层的算术运算

C．连续表面的分析、多层叠合、层与层的算术运算

D．连续表面的分析、多层叠合、成片的算术运算