乌贼、蜈蚣和蝙蝠的主要运动方式依次是（ ） A．游泳、奔跑和蠕动 B．行走、爬行

大型企业建立企业组织内部权利系统的原则是（）。

A.利益均等

B.高度集权

C.分级授权

D.按劳分配

低血钾的阈值（mmol／L）是（）

A.2.5

B.3.5

C.4.5

D.5.5

E.6.5

Observe that for the programmer, as for the chef, the urgency of the patron（顾客）may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette（煎鸡蛋），promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices-waits or eats it raw. Software customers have had __(1)__ choices. Now I do not think software __(2)__ have less inherent courage and firmness than chefs,nor than other engineering managers. But false __(3)__to match the patron's desired date is much more common in our discipline than elsewhere in engineering. It is very __(4)__ to make a vigorous, plausible, and job risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers. Clearly two solutions are needed. We need to develop and publicize productivity figures,bug-incidence figures, estimating rules, and so on. The whole profession can only profit from__(5)__such data. Until estimating is on a sounder basis, individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.

空白（4）处应选择（）

A.easy 

B.difficult 

C.simple 

D.painless

M6P受体是在高尔基体的（）

A.形成面

B.中间膜囊

C.成熟面

D.其它

经过许多科学技术人员的攻关， 目前DVD这种最新型的播放器的成本已经大大下降，单台的售价已经基本上与即将被淘汰的上一代播放设备VCD持平。有的市场分析人员认为，即将会出现一次DVD的“热销狂潮”。而对于这种预测，明讯管理学院的周教授表示不能同意，认为热销之说过于乐观。 以下哪项不能支持周教授的观点( )

A．目前市场中录制在DVD播放所使用的激光盘上的电影节目尚不多见。

B．VCD的技术虽然已经不很先进，但是十年以来已经占领了很大一部分市场，恐怕不会很快退出竞争。

C．DVD在美国的销量已经连续两年紧追彩电和冰箱的销量，成为美国电器市场销售榜的第三名。

D．供DVD播放所使用的激光盘片的制作工艺非常特殊，经技术鉴定表明基本很难盗版。