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【单选题】
同模拟信号相比,数字信号的特点是它的 性。一个数字信号只有 种取值,分别表示为 和 。
A.
对偶性,2,0,1
B.
数字性,2,0,1
C.
离散性,2,0,1
D.
连续性,2,0,1
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参考答案:
举一反三
【简答题】リーディング1の要約文を120字以内でまとめよ
【简答题】把 C=10μF的电容器接到 u=141sin(314t)V 的正弦交流电压上使用。求 X C 及通过该电容器的电流 i 。
【简答题】在文字编辑中,上下堆叠使用到的符号是__________
【简答题】リーディング1の要約文を120字以内でまとめよ。
【简答题】Cloze test. 完形填空。 This is Tianjin New Star Computer Company. Now we want a 1 assistant for sale. He is a young man 2 30-35. He should be 3 and helpful. He will 4 in Canada. He should 5 English 6 Frenc...
【简答题】リーディング1の要約文を120字以内でまとめよ。
【单选题】将人口总体按“职业”分类是按照( )分组的。
A.
数量标志
B.
变量值
C.
品质标志
D.
品质与数量标志
【单选题】检查试剂是否失效()
A.
空白试验
B.
对照试验
C.
回收试验
D.
增加平行测定的次数
E.
校准仪器
【单选题】检查试剂是否失效的方法是
A.
对照试验
B.
空白试验
C.
回收试验
D.
校准试验
【单选题】问题31-40为一道完整的Cloze题,请在本题下填写第35空的答案选项。
A.
conservative
B.
career
C.
including
D.
involving
E.
one
F.
other
G.
restricted
H.
open up
I.
open up
J.
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.
相关题目:
【单选题】问题31-40为一道完整的Cloze题,请在本题下填写第35空的答案选项。
A.
conservative
B.
career
C.
including
D.
involving
E.
one
F.
other
G.
restricted
H.
open up
I.
open up
J.
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.
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