阀门壳体的试验压力为公称压力的（）倍。A.1 B.l.5 C.2

复数z=（a²+1）-（b²+1）i（a，b∈R）对应的点位于（　　）

A．第一象限

B．第二象限

C．第三象限

D．第四象限

疝块站立时出现，平卧后消失()
疝块突然增大，不能回纳，伴有疼痛()

A．易复性疝

B．难复性疝

C．嵌顿性疝

D．绞窄性疝

E．滑动性疝

Some futurologists have assumed that the vast upsurge(剧增)of women in the workforce may portend a rejection of marriage. Many women, according to this hypothesis, would rather work than marry. The converse(反面)of this concern is that the prospects of becoming a multi-paycheck household could encourage marriage. In the past, only the earnings and financial prospects of the man counted in the marriage decision. Now, however, the earning ability of a woman can make her more attractive as a marriage partner. Data show that economic downturns tend to putting off marriage because the parties cannot afford to establish a family or are concerned about rainy days ahead. As the economy comes to life, the number of marriages also rises.

The increase in divorce rates follows to the increase in women working outside the home. Yet, it may be wrong to jump to any simple cause-and-effect conclusions. The impact of a wife’s work on divorce is no less cloudy than its impact on marriage decisions. The realization that she can be a good provider may increase the chances that a working wife will choose divorce over an unsatisfactory marriage. But the reverse is equally plausible(似是而非的). Tensions grounded in financial problems often play a key role in ending a marriage. By raising a family’s standard of living, a working wife may strengthen her family’s financial and emotional stability.

Psychological factors also should be considered. For example, a wife blocked from a career outside the home may feel caged in the house. She may view her only choice as seeking a divorce. On the other hand, if she can find fulfillment through work outside the home, work and marriage can go together to create a stronger and more stable union.

Also, a major part of women’s inequality in marriage has been due to the fact that, in most cases, men have remained the main breadwinners. A working wife may rob a husband of being the master of the house. Depending upon how the couple reacts to these new conditions, it could create a stronger equal partnership or it could create new insecurities.

小题1:The word “portend” (Line 2, Para.1) is closest in meaning to“_____”.

A．defy

B．signal

C．suffer from

D．result from小题2:It is said in the passage that when the economy slides_____.

A．men would choose working women as their marriage partners

B．more women would get married to seek financial security

C．even working women would worry about their marriages

D．more people would prefer to remain single for the time being小题3:If women find fulfillment through work outside the home,_____.

A．they are more likely to dominate their marriage partners

B．their husbands are expected to do more housework

C．their marriage ties can be strengthened

D．they tend to put their career before marriage小题4:One reason why women with no career may seek a divorce is that_____.

A．they feel that they have been robbed of their freedom

B．they are afraid of being bossed around by their husbands

C．they feel that their partners fail to live up to their expectations

D．they tend to suspect their husbands? loyalty to their marriage小题5:Which of the following statements can best summarize the authors view in the passage?

A．The stability of marriage and the divorce rate may reflect the economic situation of the country.

B．Even when economically independent, most women have to struggle for real equality in marriage.

C．In order to secure their marriage women should work outside the home and remain independent

D．The impact of the growing female workforce on marriage varies from case to case.

根据《建筑起重机械安全监督管理规定》建设部令第166号第二十六条，建设主管部门履行安全监督检查职责时，有权采取（）措施。

A.要求被检查的单位提供有关建筑起重机械的文件和资料

B.进入被检查单位和被检查单位的施工现场进行检查

C.对检查中发现的建筑起重机械生产安全事故隐患，责令立即排除

D.重大生产安全事故隐患排除前或者排除过程中无法保证安全的，责令从危险区域撤出作业人员或者暂时停止施工

下列器官中，（）不属于营养器官。

A.茎

B.叶

C.花

D.根