工程项目实施阶段的咨询业务包括______等。
A．设备采购咨询服务 B．施工监理C．设计审查 D．项目评估E．项目管理
参考答案：B,E
The successful spread of a virus depends on how long it can (74) unnoticed, before its presence is made known by the activation of side-effects. For example, many viruses (75) their code to avoid recognition.
A．move
B．replicate
C．backup
D．die out
临床最常见的慢性头痛是（）
A.丛集性头痛
B.无先兆偏头痛
C.紧张型头痛
D.药物过量使用性头痛
E.有先兆偏头痛
