下列______不属于数据库设计的内容。A．数据库管理系统 B．数据库概念结构 C．

A project plan is ______.

A) a formal, approved document used to guide both project execution and project control
B) a document issued by senior management that provides the product manager with the authority to apply organization resources of the company
C) a document description the organizational breakdown structure of the company
D) a narrative description of products or services to be supplied

One _____ needed when making a cake is flour; another is sugar.

A．container

B．ingredient

C．content

D．equivalent

切削热通过切屑、工件、刀具和（）传散。

补充追问病史，哪项对明确诊断最有意义

A．劳累是否加重疼痛

B．紧张是否加重疼痛

C．咳嗽是否加重疼痛

D．服用硝酸甘油可否减轻疼痛

E．服用抗酸剂可否减轻疼痛

合成高分子防水卷材外观质量，杂质质量要求：大于1.5mm颗粒不允许，每10m²不超过9mm²。( )