治疗重症肌无力最常用的首选药物是（）。 A.左旋多巴 B.安贝氯胺 C.吡啶斯的明

Society can be broken up into three classes: the Elite, the Meek and the Masses. The Elite are (51) of the top 10% of society, those that don’t need anyone’s help (52) it comes to getting what they want. They have the status, the money, the power, and the respect to (53) whatever they need. In spite of the fact that they enjoy the upper hand, people outside of this class will still go to great (54) to help them even further.

The Meek are comprised of the bottom 10% of society, those who need our help, and badly at that. But (55) so many of us are eager to get in well with the Elite, few actually care enough to provide any (56) to the Meek. The Masses are the largest class, (57) up the middle 80% between the Meek and the Elite. Most of the Masses could use some help getting by, and (58) it would usually improve their lives considerably, but they (59) get it. Why do most people would rather help the Meek or the Elite Because they are (60) with instant gratification or the anticipation of future benefits. We rarely help the Masses because there is nothing really in it for us, and this shows humanity’s true colors.

52().

A.when 

B.whenever 

C.if 

D.evenif

原位癌是病理（）

A.良性肿瘤

B.恶性肿瘤

C.交界性肿瘤

D.癌前病变

E.非肿瘤性良性病变病理

阅读《天净沙·秋思》，回答下面的问题。

（1）这首小令为我们描绘了一副怎样的秋景图？请结合前三句的内容，用生动的语言描绘出来。

　_____________________________________________________________________________________

（2）从最后两句看，这首小令表达了作者怎样的情感？ 

　_____________________________________________________________________________________

2005年1月1日，甲公司为其50名中层以上管理人员每人授予500份现金股票增值权，相关职员自2008年12月31日起根据当时股价的增长幅度获得现金，该增值权应在2010年12月31日之前行使完毕。截至2006年累积确认负债75000元，在2007年有5人离职，2007年以前无人离职，预计2008年也无人离职，2007年末该现金股票增值权公允价值为6元，该项股份支付对2007年当期管理费用的影响金额和2007年末该项负债的累计金额是( )元。

A．9375，60000
B．26250，101250
C．37500，62500
D．11025，112500