皮皮学,免费搜题
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【单选题】
Mom, I’m old enough to wash ________ own clothes and ________. You can have a rest after work.
A.
my; your
B.
my; yours
C.
your; my
D.
yours; mine
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皮皮学刷刷变学霸
举一反三
【单选题】Growing numbers of e-waste could pose threats to _____.
A.
The development of economy
B.
The ecosystem and human populations
C.
The widespread and application of high technology
【判断题】链传动能保证准确的平均传动比,传动功率大。
A.
正确
B.
错误
【判断题】审核和批准所有与质量有关的变更是质量管理负责人的职责。
A.
正确
B.
错误
【多选题】对于中值滤波的特性中描述正确 的是哪些?
A.
对于阶跃信号,中值滤波会改变信号的形状。
B.
对与椒盐噪声,中值滤波比均值滤波能力强
C.
对相距较远的窄脉冲干扰,中值滤波效果较好
D.
信号经过中值滤波后,频谱基本不变
【判断题】链传动能保证准确的平均传动比。
A.
正确
B.
错误
【单选题】审核和批准所有与质量有关的变更是
A.
企业负责人
B.
生产管理负责人
C.
质量管理负责人
D.
质量受权人
E.
企业法定代表
【判断题】文件指针用于指向文件,文件只有被打开后才有对应的文件指针
A.
正确
B.
错误
【判断题】链传动能保证准确的平均传动比且传动功率大。
A.
正确
B.
错误
【判断题】相比均值滤波,中值滤波对椒盐 噪声的滤波效果更好。
A.
正确
B.
错误
【多选题】专四完形填空新题型模拟题( 5 )
A.
pose
B.
exaggerated
C.
accelerating
D.
extinct
E.
exist
F.
perception
G.
wealthy
H.
magnified
I.
starving
J.
head K. running L. predicted M. abundant N. conception O. reducing For many environmentalists, the world seems to be getting worse. They have developed a hitlist of our main fears: natural resources are ( 1_____ ) out?; the population is ever growing, leaving less and less to eat; species are becoming ( 2______ ) in vast numbers, and the planet's air and water are becoming ever more polluted. But a quick look at the facts shows a different picture. First, energy and other natural resources have become more ( 3________ ) not less so, since the book 'The Limits to Growth' was published in 1972 by a group of scientists. Second, more food is now produced per (4__________) of the world's population than at any time in history. Fewer people are ( 5_________ ) . Third, although species are indeed becoming extinct, only about 0.7% of them are expected to disappear in the next 50 years, not 25~50%, as has so often been ( 6________ ) . And finally, most forms of environmental pollution either appear to have been ( 7________ ) , or are transient - associated with the early stages of industrialization and therefore best cured not by restricting economic growth, but by ( 8_________ ) it. One form of pollution - the release of greenhouse gases that causes global warming - does appear to be a phenomenon that is going to extend well into our future, but its total impact is unlikely to ( 9_________ ) a devastating problem. A bigger problem may well turn out to be an inappropriate response to it. Yet opinion polls suggest that many people nurture the belief that environmental standards are declining and some factors seem to cause this disjunction between ( 10________ ) and reality.
相关题目:
【多选题】专四完形填空新题型模拟题( 5 )
A.
pose
B.
exaggerated
C.
accelerating
D.
extinct
E.
exist
F.
perception
G.
wealthy
H.
magnified
I.
starving
J.
head K. running L. predicted M. abundant N. conception O. reducing For many environmentalists, the world seems to be getting worse. They have developed a hitlist of our main fears: natural resources are ( 1_____ ) out?; the population is ever growing, leaving less and less to eat; species are becoming ( 2______ ) in vast numbers, and the planet's air and water are becoming ever more polluted. But a quick look at the facts shows a different picture. First, energy and other natural resources have become more ( 3________ ) not less so, since the book 'The Limits to Growth' was published in 1972 by a group of scientists. Second, more food is now produced per (4__________) of the world's population than at any time in history. Fewer people are ( 5_________ ) . Third, although species are indeed becoming extinct, only about 0.7% of them are expected to disappear in the next 50 years, not 25~50%, as has so often been ( 6________ ) . And finally, most forms of environmental pollution either appear to have been ( 7________ ) , or are transient - associated with the early stages of industrialization and therefore best cured not by restricting economic growth, but by ( 8_________ ) it. One form of pollution - the release of greenhouse gases that causes global warming - does appear to be a phenomenon that is going to extend well into our future, but its total impact is unlikely to ( 9_________ ) a devastating problem. A bigger problem may well turn out to be an inappropriate response to it. Yet opinion polls suggest that many people nurture the belief that environmental standards are declining and some factors seem to cause this disjunction between ( 10________ ) and reality.