在数据加密技术中，加密的原始数据称为 ______。
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甲乙两球在水平光滑轨道上同方向运动，已知它们的动量分别是p1=5kg．m/s，p2=7kg．m/s，甲从后面追上乙并发生碰撞，碰后乙球的动量变为10kg．m/s，则两球质量m1与m2间的关系可能是（ ）
A．m1=m2
B．2m1=m2
C．4m1=m2
D．6m1=m2
| 一般资料：求助者，女性，32岁，机关公务员。 案例介绍：求助者主诉，半年前发现丈夫手机里有暧昧的短信。她非常震惊，从没想到过丈夫会出轨。她对家庭很满意，儿子已上学，家里生活衣食无忧，自己有房有车，工作也稳定，她怎么也不敢相信自己的丈夫会和别的女人好上，心中痛苦万分。她想到了离婚可又割舍不下这个家，不离婚又不能容忍丈夫对自己的背叛，她在矛盾的煎熬中度日如年，无心做家务，整日忧心忡忡，失眠，心口像有一块石头一样压着喘不过气来。同事都很关切地问她是否身体不舒服，她觉得他们都虚情假意，连结发夫妻都能背叛自己，她还能相信别人吗她觉得生活欺骗了她，活着很没意思，打不起精神，不愿下楼，不愿见人，不想上班，对什么都没兴趣。明明知道不该这样，可就是控制不住，为此前来咨询。 心理咨询师观察了解到的情况：求助者性格内向，追求完美。与丈夫是初恋。从小受家庭传统教育的影响。 |
本案例中评价咨询效果的指标包括( )。
A．建立合理观念
B．心理测验结果
C．掌握交流技巧
D．咨询师的观察
素质教育的时代特征是_________。（广东省广州市）
多为幼儿选择一些（）的玩具材料或废旧材料。
A.能操作、多变化、新颖
B.能操作、多功能、新颖
C.能操作、多变化、多功能
Deflation is an economic theory relating changes in the price levels to changes in the quantity of money. In its developed (1) , it constitutes an analysis of the (2) underlying inflation and deflation. As (3) by the English philosopher John Locke in the 17th century, the Scottish (4) David Hume in the 18th century, and (5) , it was a weapon (6) the mercantilists, who were thought to equate wealth with money. If the (7) of money by a nation merely raised (8) , argued the quantity theorists, then a "favourable" balance of trade, (9) desired by mercantilists, would increase the supply of money but would not in-crease (10) . In the 19th century the quantity theory (11) to the ascendancy of free trade over protectionism. In the 19th and 20th centuries it played a part in the (12) of business cycles and in the theory of foreign (13) rates.
The (14) theory came under attack during the 1930s, (15) monetary expansion seemed ineffective in combating deflation. Economists argued that the levels of investment and government spending were more important than the money supply in determining economic activity.
The tide of opinion (16) again in the 1960s, when experience (17) post-World WarⅡ inflation and new empirical (18) of money and prices— (19) A Monetary History of the United States (1963) by Milton Friedman and Anna Schwartz—restored much of the quantity theory’ s lost prestige. One implication of this theory is that the size of the stock of money must be considered when shaping governmental policies (20) to control prices and maintain full employment.
19（）
A.similar to
B. such as
C.along with
D.aside from