Sine the 1960s,（）has become the mainstay of the Irish economy.

Demographic indicators show that Americans in the postwar period were moreeager than ever to establish families. They quickly brought down the age at marriagefor both men and women and brought the birth rate to a twentieth century height　　  1．_______after more than a hundred years of a steady decline, producing the” baby boom.”　　2．_______These young adults established a trend of early marriage and relatively largefamilies that went for more than two decades and caused a major but temporary　　    3．_______reversal of longterm demographic patterns. From the 1940s through the early1960s, Americans married at a high rate and at a younger age than their　　　　　    4．_______Europe counterparts.　　　　　　　　　　　　　　　　　　　　　　　　　 　　　 　　　 5．_______　　Less noted but equally more significant, the men and women who formed　　 　　　 6．_______families between 1940 and 1960 nevertheless reduced the divorce rate after a　　　   7．_______postwar peak; their marriages remained intact to a greater extent than did that of　 8．_______couples who married in earlier as well as later decades. Since the United States　　 9．_______maintained its dubious distinction of having the highest divorce rate in the world,the temporary decline in divorce did not occur in the same extent in Europe.　　　  10．_______Contrary to fears of the experts, the role of breadwinner and homemaker was notabandoned.

Through a （） pump, the liquid is transferred from the suction to the discharge by the mechanical variation of the volume of a chamber or chambers.

The Perform. Integrated Change Control process is conducted from project lnception through completion and is the ultimate responsibility of the(75)

From the second paragraph, we can see that in the early years,______.

Practice 7　　Average household debt in the United States is currently 130 percent of average household income. The U. S. household savings rate is close to zero. Consumer confidence has plummeted with the value of 401(k) plans and retirement nest eggs. Car sales are at a fifteen-year low. And credit card defaults look like the next shoe to drop as cash-strapped Americans have run up credit card debt to postpone the day of reckoning.　　Too many Americans have been expressing the Dream through the acquisition of stuff. Americans need a refresher course on the American dream. The Constitution speaks of life, liberty, and the pursuit of happiness, not an automatic chicken in every pot. The American Dream embraced by immigrants over the past two centuries has been the opportunity to set one’s own goals and pursue them honestly to the limits of one’s ambition and ability. Too many Americans have been expressing the Dream through the acquisition of stuff. Others see the Dream as raising a family in a land that delivers Franklin Roosevelt’s four freedoms. Still others dream of their children accessing the highest possible level of education, living healthy lives, being good citizens in their communities.

With the introduction of the motorbus, the tramway suddenly seemed comparatively expensive to operate, and the ______ it enjoyed in the early 1900's diminished.

Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in th eload’s（）.

The asocial personality of Americans may stem from ______.

What do we find after the development of the laser in the 1960s?

A plane that cuts the Earth’s surface and passes through the poles will always form（）.