基础性

直观性

动态性

灵活性

数量标志

变量值

品质标志

品质与数量标志

空白试验

对照试验

回收试验

增加平行测定的次数

校准仪器

对照试验

空白试验

回收试验

校准试验

conservative

career

including

involving

one

other

restricted

open up

open up

settle K. the other L. go M. reserved N. preserved O. dominatedIn Japan, most people still feel that a woman’s place is in the home; and most women willingly accept their traditional role as wives, leaving the business of making a living to their husbands. For those who do want a31 oftheir own, opportunities are limited, and working women usually have to32 for low wages, fewer promotions, and less responsible positions.In America, on the other hand, most women,33 wives and mothers, work most of their lives. But until recently, few have had real careers. As in Japan most fields are34by menandopportunities for women have been35 ,salarieslow,chances for advances for advancement rare. American women work mainly because they have to; in these days of inflation and luxurious living,36income per family is simply not enough to live on. So American women actually have two jobs: one nine-to-five position outside the home, and 37 round-the-clock in-the-home job as wife, housemaid, cook and nurse.One of the main goals of the modern women’s liberation movement, which started in the early 1960s, was to eliminate(消除) sex discrimination in the work force, and to38careers forwomen that were previously39 for men. And though there is still a long way to40 ,a lot of progress has been made.