现今，不少企业都注意到企业团队歌曲的作用，通过员工每天的合唱，以此来增强企业的凝聚力

把二叉树转为树和树林的方法是凡是兄弟就用线连起来，然后去掉双亲到子女的连线，只留下双亲到【 】的连线不去掉。

— He didn't feel a bit nervous when ______.

— No. He'd had a lot of time ______ for it after all. [      ]

A. interviewing; to prepare

B. interviewed; to prepare

C. interviewing; preparing

D. being interviewed; preparing

一患者颈肩痛6年余，出现四肢麻木，无力半年，行走时步态不稳。体检见双手尺侧以下皮肤感觉减退，双下肢肌张力增高，肌力Ⅲ~Ⅳ级。X线片见颈椎骨质明显退行性改变。其诊断可能为（）

A.颈椎增生

B.神经根型颈椎病

C.脊髓型颈椎病

D.交感神经型颈椎病

E.椎管内肿瘤

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.

A．in general

B．in any term

C．in set terms

D．in terms of

在数据挖掘的各种功能中，在质量控制方面应用最多的是（）

A.聚类分析

B.分类

C.关联发现

D.时间序列预测