【单选题】关于兴奋在中枢的扩布特征的描述,错误的是()
【简答题】在消失点滤镜对话框中,“创建平面工具”的主要作用是
【单选题】下面细胞生物学研究主要内容不属于细胞的结构于功能的方面
【单选题】下列句子中加点成语的使用,正确的一项是( )
A.
当时人人自危, 自顾不暇 ,儿子惹了这么一个大麻烦,使我们非常为难。
B.
秋雨湿透了衣衫,他双手交叉护在胸前,想留住一点温暖, 可没有用,他仍然颤抖着, 噤若寒蝉 。
C.
在强调环保时却对目前的生存环境漠不关心,这不能不说是极大的失误,也表明.环境意识的启蒙 迫不及待 。
D.
我国乒坛健儿在男团决赛中力克瑞队,勇夺冠军,体育馆内 振聋发聩 地欢呼声淹没了场外的雷声和雨声。
【单选题】What is implied in the efficient market hypothesis 'Theres no such thing as a free lunch'?
A.
You need to ignore a hot tip offered.
B.
You need to pay for a hot tip offered.
C.
You need to justify a hot tip offered.
D.
You need to take quick advantage of a hot tip offered.
【单选题】The efficient market hypothesis suggests that
A.
investors should not try to outguess the market by constantly buying and selling securities.
B.
investors do better on average if they adopt a "buy and hold" strategy.
C.
buying into a mutual fund is a sensible strategy for a small investor.
D.
all of the above are sensible strategies.
【单选题】According to the efficient market hypothesis
A.
one cannot expect to earn an abnormally high return by purchasing a security.
B.
information in newspapers and in the published reports of financial analysts is already reflected in market prices.
C.
unexploited profit opportunities abound, thereby explaining why so many people get rich by trading securities.
D.
all of the above are true.
E.
only A and B of the above are true.
【简答题】目前,我国由于升学竞争和就业竞争的现实性矛盾,学校教育陷入应试教育的模式中,而这种竞争也影响到学前教育阶段,如社会上风行的“零岁方案”“神童方案”。一些家长和幼教机构难以摆脱这种短视的教育做法,表现为重知识灌输轻能力培养、重智力培养轻人格因素培养等错误倾向。一些幼儿园迫于家长压力或经济利益的驱动,办起了各式各样的兴趣班、特长班。 请从如何正确理解我国学前教育目标这一角度分析以上现象。