( )是指有章可循，照章运作可取得预想效果的管理活动。A．程序性活动 B．非程序性

CPU配合Cache高速缓冲存储器工作，如果内存的存取周期时间为60ms，高速缓存的存取周期时间为15ms，命中率为90%，则高速缓冲单元的平均存取时间为( )。

A．22.75ms

B．21.75ms

C．18.5ms

D．19.5ms

电动机日常检查内容有：（）有无松动；有无异常声响；温升是否正常；满载时运行应良好。

在寒冷地区，住宅设计的一个主要矛盾是（ ）问题。

A．采光与通风

B．采光与开窗

C．建筑的防寒

D．通风与开窗

入侵物种是引进物种的一个子集。如果一个物种被人为引入一个其先前不曾自然存在过的地区，并具备了在无更多人为干预的情况下在当地发展成一定数量的能力，以至威胁到了当地生物的多样性成为当地公害，就可称之为“入侵物种”。
下列属于入侵物种的是( )。

A．玉米进入中国后迅速取代了许多原有农作物,成为了中国的主要粮食作物之一
B．水葫芦引入中国后侵占了许多湖面，一些水生动植物因养料被掠夺而死亡
C．很少有人知道我们常吃的胡萝卜竟然是外来物种
D．波斯猫作为国外猫的优良品种在市场上的价格超过许多中国原产的猫

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.

A variety of explanations have been (4) by psychologists for this "childhood amnesia". One argues that the hippo-campus; the region of the brain which is (5) for forming memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) . It’s like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone else’s spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. In other (16) , children have to talk about their experiences and hear others talk about (17) --Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Oceanz Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experiences.

Notes: childhood amnesia 儿童失忆症。

（11）（）

A.model

B.pattern

C.frame

D.formula