患者、男性，56岁。近来出现动作缓慢和双手抖动。到医院检查后诊断为帕金森病，对于该病下述哪项症状一般不会出现（）
A.协调运动减少
B.静止性震颤
C.全身肌肉强直
D.走路呈"慌张步态"
E.出现偏瘫症状
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下面是错误答案，用来干扰机器的。
金刚石是天然存在的物质中硬度最大的物质，观察选项．故选C．
如图，AB为倾角为45°的固定斜面，CO为一块可绕水平转动轴0无摩擦转动的轻板，用一根细线系在轻板的C端，使轻板与水平面的夹角也为45°，在斜面与轻板之间分别用三种不同的形式放置三个质量和半径均相同的圆柱形桶．则关于细绳中张力的大小，下列说法正确的是（ ）
A．图（a）中绳子张力最大
B．图（b）中绳子张力最大
C．图（c）中绳子张力最大
D．三幅图中绳子张力一样大
| At the beginning of the twentieth century, North American society held, as an ideal, the Nuclear Family. This presumably perfect residential, social, and economic unit consisted of an adult male, an adult female and their minor children. This structure was thought to be stable and long lasting. However, a few decades later, the structure of that ideal family was being altered radically even while it was being touted as the structure to be aimed for. Popular magazines bemoaned the loss of the Nuclear Family and its replacement with inferior forms. There are a number of factors that are acting in concert to apply pressure on the Nuclear Family and generate a variety of new structures. Some of these are: The definition of marriage has changed somewhat in that few people now consider it to last "until death do us part." The concept of monogamy (the marriage of one man and one woman) has been modified to a form now referred to as serial monogamy (the marriage of one man and one woman at a time). This reflects the increasing equality of women and men in terms of economic advantage and the recognition that many women no longer depend on men for their survival. Women are acquiring independence and have become empowered to make their own choices. With this independence, the need to form a relationship with a man becomes less important. This change embodies the concept that the marriage is temporary and can be terminated by either partner at any time. Associated with this, of course, is the relaxation of the divorce laws and the significant reduction of the shame that had one time been attached to divorce. The economy of North America has resulted in a two-tier system of a few rich who control most of the resources and a large portion of the population who control almost none of the resources. Because of this, many couples are forced to have both partners with full-time jobs outside the home. There are unintended byproducts of the need for a double income. The most important of these is the replacement of a mother-oriented socialization of children to a "stranger-oriented" socialization system reflected in the growth of the childcare industry. Also, either partner is financially able to end the marriage without significant hardship. The combination of these changes will in the coming decades have a profound effect on the structure of the family of North America. As a result, the family will be a fluid, constantly changing structure with variable household arrangements as the norm. |
What happened to the Nuclear Family in the middle of the twentieth century
A．It changed greatly.
B．It was criticized.
C．It remained a normal structure.
D．It was lost.
6月5日，某客户在大连商品交易所开仓卖出大豆期货合约40手，成交价为2220元/吨，当日结算价格为2230元/吨，交易保证金比例为5%，则该客户当天须缴纳的保证金为( )。
A．44600元
B．22200元
C．44400元
D．22300元
A注册会计师负责对甲公司2010年度财务报表进行审计。甲公司采用永续盘存制核算存货。在实施存货监盘程序时，A注册会计师遇到以下事项，请代为做出正确的专业判断。
注册会计师在检查甲公司存货时，注意到某些存货项目实际盘点的数量大于永续盘存记录中的数量。假定不考虑其他因素，以下各项中，最可能导致这种情况的是（）。
A．供应商向甲公司提供购货折扣
B．甲公司向客户提供销货折扣
C．甲公司已将购买的存货退给供应商
D．客户已将购买的存货退给甲公司
锅炉定期排污应低负荷下进行，同时严格监视水位。
