110+120+130+140+150=______×______．

(二)
某城市轻轨工程的建设单位自行办理招标事宜。由于该工程技术复杂，建设单位决定采用邀请招标，共邀请A、B、C三家国有特级施工企业参加投标。
投标邀请书规定：6月1日至6月3日9:00～17:00在该单位总经济师室出售招标文件。
招标文件中规定：6月30日为投标截止日；投标有效期到7月20日为止；投标保证金统一定为100万元，投标保证金有效期到8月20日为止；评标采用综合评价法，技术标和商务标各占50%。
在评标过程中，鉴于各投标人的技术方案大同小异，建设单位决定将评标方法改为经评审的最低投标价法。评标委员会根据修改后的评标方法，确定的评标结果排名顺序为A公司、C公司、B公司。建设单位于7月15日确定A公司中标，于7月16日向A公司发出中标通知书，并于7月18日与A公司签订了合同。在签订合同过程中，经审查，A公司所选择的设备安装分包单位不符合要求，建设单位遂指定国有一级安装企业D公司作为A公司的分包单位。建设单位于7月28日将中标结果通知了B、C两家公司，并将投标保证金退还给该两家公司。建设单位于7月31日向当地招标投标管理部门提交了该工程招标投标情况的书面报告。
问题

该建设单位在招标工作中有哪些不妥之处请逐一说明理由。

有下列各组微粒：

①¹²C和¹⁴C②O₂和O₃③H、D、T ④金刚石和石墨⑤甲醇和二甲醚⑥正丁烷和异丁烷

用序号填空：

（1）互为同位素的是______；

（2）互为同素异形体的是______；

（3）互为同分异构体的是______．

w性心理障碍

我国基金监管的具体目标有( )。

A．保护投资者利益

B．保证市场的公平、效率和透明

C．降低系统风险

D．推动基金业规范发展

阅读理解。

     The house was quiet at 5 a.m. and Tim's mother was asleep. Only the sound of the big freezer broke

the quiet. He'd dreamt of the cave last night? The purring (轻微颤动声) of the freezer had been the sea.

    Tim pulled on a sweater and put some apples into his schoolbag. It was too early for breakfast. He'd

eat after he'd been through the cave, sitting on the rocks and staring at the sea.

    He wished he had a proper pack. His schoolbag would have to do. What else? Sandwiches -but his

mother might wake up if he started pulling out bread for sandwiches. She'd want to know why he had to

leave so early. He settled for some biscuits, and left a note stuck to the table.

    Gone to Michael's. Back tonight. Tim.

    The sky was high and soft and light outside, though the sun still wasn't up. Even the highway up the hill

was quiet as he made his way down the street. The wind from the sea was fresh and sweet.

    The sandhills still breathed heat from yesterday's sun, though the top of the sand was cool. He ran

down to the beach impatiently, but there was no one, just dry sand dancing in the early wind and seabirds marching up and down watching the waves.

    The light changed suddenly. The first rays of sunlight stretched across the sea. The sun was pushing its

way over the edge of the world

    Over the first rocks, along to the point. Tim glanced back. The beach was still empty. The sun sailed

higher in the sky.

    He could see the cave now, even darker in the morning light. The sand turned silver then dark gold as

the water flowed away from it. He had to force himself to go closer. Why was it so much more mysterious now? But it would be silly to go back now after so much trouble. He needn't go in all the way...

1. What did Tim do at the beginning of the story?

A. He left the house quietly.    

B. He had breakfast at home.

C. He left a note on the freezer.

D. He put a sweater in his schoolbag.

2. "He settled for some biscuits" (in Paragraph 3) means that Tim             

A. had to leave the biscuits on the table.

B. liked biscuits better than sandwiches.

C. had to take biscuits instead of sandwiches.

D. could only find some biscuits in the kitchen.

3. Which of the following statements is TRUE according to the story?  

A. The sea looked like a piece of gold.

B. Seabirds flew away when Tim arrived.

C. Tim was the only person on the beach.

D. The sky got dark as Tim reached the cave.

4. In the story, Tim's mood changed from        .

A. loneliness to craziness

B. anxiousness to excitement

C. helplessness to happiness

D. eagerness to nervousness