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One advantage of the all-purpose nozzle is that it ______.A.can fit any size hoseB.converts a stream of water into a fogC.increases the amount of water reaching the fireD.can spray two streams of water at the same time
题目
One advantage of the all-purpose nozzle is that it ______.
A.can fit any size hose
B.converts a stream of water into a fog
C.increases the amount of water reaching the fire
D.can spray two streams of water at the same time
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第1题：
Does Robert have ______ computer? —Yes,he has ______ .A、an,some
B、a,one
C、a,/
D、any,one
参考答案： B
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第2题：
Inspection of a Halon extinguisher involves checking the hose，handle，nozzle，and ______.
A.sight glass
B.weighing the extinguisher
C.service technicians report
D.last date it was charged
正确答案：B
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第3题：
下列关于sklean转换器的说法与使用方式错误的是（）。
A．fit在转换器中起到的作用为训练模型
B．fit在转换器中起到的作用为生成规则
C．transform在转换器中起到的作用为应用规则
D．fit_transform是fit和transform的结合
sklearn 在官网被分为7个大块 -
第4题：
Which three are characteristics of an IPV6 anycast address?()A.any-to-many communication model
B.delivery of packets to the group interface that is closest to the sending device
C.one-to-many communication model
D.the same address for multiple devices in the group
E.one-to-nearest communication model
F.a unique IPV6 address for each device in the group
参考答案：B, D, E
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第5题：
资料：You can not go forward by going backward. Take the current debate about trade and globalization, for instance, while the impulse to erect trade barriers is understandable given the pain experienced in recent years, it is not the way to create lasting growth and shared prosperity.
Over the past three decades, global flows of trade and investment have accelerated dramatically, creating enormous economic value. However, trade and globalization have also brought wrenching job losses. The financial crisis and weak recovery have made matters worse, intensifying the backlash against trade and globalization.
Part of the problem is that the benefits of trade and investment go largely unrecognized, while the job losses are often overstated. Another significant problem is that participation in trade and investment is limited to a relatively small set of firms. In the U.S., large firms account for three-quarters of total exports, and the vast majority of small and medium-size businesses do not export. This means firms have a great opportunity to boost growth and productivity through wider participation in trade.
That leaves the question of how to help those hurt by trade and globalization. Too often we talk about re-training as a panacea（万能药）.And yes, it helps. But it needs to take into account the different requirements of each workforce and needs to be part of a wider set of support for affected workers and communities.
Above all, it is important to recognize that our economic transition to a global and digital economy is an irreversible trend. Only by broadening participation in the global economy, rather than by trying to turn back the clock, will we discover answers to today’s most vexing economic problems.
What does the author think of re-training as a solution?A.It is a one-size-fit-all solution.
B.It is not helpful to those hurt by trade and globalization.
C.It should meet the different needs of affected workforce.
D.It should not be talked about so often.答案：C解析：本题考查的是细节理解和同义转换。
【关键词】retraining
【主题句】第4自然段 Too often we talk about re-training as a panacea. And yes, it helps.But it needs to take into account the different requirements of each workforce and needs to be part of a wider set of support for affected workers and communities.我们经常说重新培训是一种万灵药。是的，它确实有帮助。但它需要考虑到每个劳动力的不同需求，并需要成为对受影响工人和社区的更广泛支持的一部分。
【解析】本题的问题是“作者认为重新培训是一种怎样的解决办法？”。根据主题句可知，作者认为重新培训并不是万全之策，需要考虑每种劳动力的不同需求，故选C。 -
第6题：
在R中回归模型为fit，如何查看模型fit信息？
C