物资需求计划应按（）编制。 A.工程项目 B.单位工程 C.分部工程 D.分项工程

阅读短文,在其后空白处写出各单词的正确形式。单词的第一个字母已经给出。

A disappointing performance

Tom was sick with disappointment. The piano performance was almost a success, however, he f 小题1: in his solo(独奏). He couldn’t understand how it could have happened.

He had practiced for weeks that seemed like m  小题2:. He had given up sports until after the performance because he wanted to make his parents p 小题3: of him. He spent all his time with the piano.

His teacher had said he was q 小题4: to learn. It was true that he accepted music as another l 小题5:, another way to talk to people.

His grandparents, aunt, and uncle all came to hear him play, and he was anxious to s 小题6: them that he was the best in the whole class.

But, when he stood up to go to the piano, his knees felt w 小题7:. He looked into the audience and saw his f 小题8: smiling back at him.

At this time, he felt n 小题9:. His fingers began to tremble (颤抖), shaking as though he had caught a bad cold.

He sat down at the piano. He took a deep breath. He played the first part of his music, then realized with fear that he had forgotten the rest. He s 小题10:over, thinking that would help. It didn’t. his bright musical life seemed to end.

使用托盘天平测量物体质量的时候，某位同学在操作过程中使用了已磨损的砝码，并且在读数的时候，指针不是指在零刻度，而是偏向刻度盘右边一点儿．试分析以上两个操作步骤将会使测量结果造成怎样的误差？

据统计：淮安中欣国际实验学校的停车场停放的汽车和两轮电动车共120辆．李峰数了数轮子，发现一共有264个轮子．汽车和电动车各多少辆？

医疗机构药检室的主要职责包括（）。

A.研究处理制剂重大质量问题

B.制定药检室人员的职责

C.制定质量管理组织任务、职责

D.制定检验用设备、仪器、试剂、试液、标准品、滴定液与培养液及实验动物等管理办法

安全管理的核心内容是（）。

A.制定安全技术方案

B.建立和维持安全控制系统

C.增加安全投入

D.加强内部沟通