在汽油价格上升之后，随着时间流逝，汽油的需求会越来越缺乏弹性。

We spent a day in the country, picking wild flowers. With the car full of flowers we were going home. On our way back my wife noticed a cupboard outside a furniture shop. It was tall and narrow. “Buy it,” my wife said at once. “We’ll carry it home on the roof rack(行李架), I’ve always wanted one like that.”

What could I do? Ten minutes later I was 20 pounds poorer, and the cupboard was tied onto the roof rack. It was six inches long and eighteen inches square, quite heavy too.

In the gathering darkness I drove slowly. Other drivers seemed unusually polite that evening. The police even stopped traffic to let us through. Carrying furniture was a good idea.

After a time my wife said, “There’s a long line of cars behind. Why don’t they overtake, I wonder?”

In fact a police car did overtake. The two officers inside looked at us seriously as they passed. But then, with great kindness, they led us through the rush-hour traffic. The police car stopped at our village church. One of the officers came to me.

“Right, sir,” he said. “Do you need any more help?”

I was a bit puzzled. “Thanks, officer,” I said. “You have been very kind. I live just on the road.”

He was staring at our car: first at the flowers, and then at the cupboard. “Well, well,” he said, laughing. “It’s a cupboard you’ve got there! We thought it was, something else.”

My wife began to laugh. Then the truth hit me like a stone between the eyes. I smiled at the officer. “Yes, it’s a cupboard, but thanks again.” I drove home as fast as I could.

小题1:It can be inferred from the passage that______.

A．other drivers let the couple go first, because the husband did not drive fast

B．the cupboard cost less than 20 pounds

C．the husband, in fact, would rather not buy the cupboard

D．all the cars followed the couple’s小题2:The police will be more polite to those who are______.

A．in great sorrow

B．driving in the gathering darkness

C．driving with wild flowers in the car

D．carrying furniture小题3:What did the police officer think of the cupboard?

A．It was so expensive that it needed their help

B．It was a box for a dead person to be buried in.

C．There might be something stolen in it.

D．It was a big box with some bomb in it.小题4:What did the husband think of the whole matter?

A．It was very strange.

B．He took great pride in it.

C．He was puzzled at it

D．He felt embarrassed.

西班牙旅游业的王牌产品是“3S”，即阳光(sun)、海滩(shore)和海洋(sea)。( )

下列化学用语正确的是（　　）

A．O^2-电子排布1S²2S²2P⁴

B．二氧化硅的分子式：SiO₂

C．-CH₃的电子式：

D．N原子的电子排布图：

政府投资的某工程，该工程采用无标底公开招标方式选定施工单位。工程实施中发生了下列事件。 事件1：工程招标时，A、B、C、D、E、F、G共七家投标单位通过资格预审，并在投标截止时间前提交了投标文件。评标时，发现A投标单位的投标文件虽加盖了公章，但没有投标单位法定代表人签字，只有法定代表人授权书中被授权人的签字(招标文件中对是否可由被授权人签字没有具体规定)；B投标单位的投标报价明显高于其他投标单位的投标报价，分析其原因是施工工艺落后造成的；C投标单位将招标文件中规定的工期380天作为投标工期，但在投标文件中明确表示如果中标，合同工期按定额工期400天签订；D投标单位投标文件中的总价金额汇总有误。 事件2：经评标委员会评审，推荐G、F、E投标单位为前3名中标候选人。在中标通知书发出前，建设单位要求工程师分别找G、F、E投标单位重新报价，以价格低者为中标单位。按原投标价签订施工合同后，建设单位以中标单位再次新报价签订协议书，作为实际履行合同的依据。 工程师认为建设单位的要求不妥，并提出了不同意见，建设单位最终接受了工程师的意见，确定G投标单位为中标单位。 事件3：建设单位于2002年4月30日向G承包商发出了中标通知书。之后由于工期紧，业主口头指令G承包商先做开工准备，再签订工程承包合同。G承包商按照业主要求进行了施工场地平整等一系列准备工作，但业主迟迟不同意签订工程承包合同。后经过双方多次协商，才于2002年9月30日正式签订了工程承包合同。合同总价为6 240万元，工期12个月，竣工日期2003年10月30日。 事件4：本工程按合同约定按期竣工验收并交付使用。在正常使用条件下，2007年3月30日，使用单位发现屋面局部漏水，需要维修，G承包商认为此时工程竣工验收交付使用已超过3年，拒绝派人返修。业主被迫另请其他专业防水施工单位修理，修理费为5万元。 问题： 1．分别指出事件1中A、B、C、D投标单位的投标文件是否有效说明理由。 2．事件2中，建设单位的要求违反了招标投标有关法规的哪些具体规定 3．指出事件3中业主迟迟不与G承包商签订合同，是否符合《招标投标法》的规定说明理由。 4．事件4中，G承包商是否仍应对该屋面漏水承担质量保修责任说明理由。屋面漏水修理费应由谁承担

下列叙述中正确的是______。

A．算法就是程序
B．设计算法时只需要考虑数据结构的设计
C．设计算法时只需要考虑结果的可靠性
D．以上三种说法都不对