阑尾脓肿消退后，行阑尾切除术的时机是（）。 A.立即 B.15天后 C.30天后 D

本建筑工程安装临时消防竖管，其管径要求最小不得小于( )mm。

A．25

B．35

C．50

D．75

色氨酸溶液与茚三酮试剂有显色反应，说明色氨酸结构中有（）

A.肽键

B.游离氨基

C.芳环

D.酚羟基

给煤机启动条件。

When women do become managers, do they bring a different style and different skills to the job Are they better, or worse, managers than men Are women more highly motivated and (51) than male managers

Some research (52) the idea that women bring different attitudes and skills to management jobs, such as great cooperativeness, an emphasis on attachment, and a (53) to bring emotional factors to bear in making workplace decisions. These differences are seen to carry advantages for companies, (54) they expand the range of techniques that can be used to (55) the company manage its workforce effectively.

A study commissioned by the International Women’s Forum discovered a management style used by some women managers (and also by some men) that (56) from the command-and-control style traditionally used by male managers. Using this "interactive leadership" approach, "women (57) participation, share power and information, enhance other people’s self-worth, and get others excited about their work. All these (58) reflect their belief that allowing employees to contribute and to feel powerful and important is a win-win (59) —good for the employees and the organization. " The study’s director (60) that "interactive leadership may emerge as the management style of choice for many organizations. \

54().

A.therefore 

B.whereas 

C.because 

D.nonetheless

当水、汽质量劣化时，化学运行人员应如何处理？