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问题 选择题

下列词语中加点字的读音完全正确的一项是

A．端倪（ní）什刹海（shí）舐犊情深（tiǎn）

B．拮据（jié）冰碴儿（chá）夙兴夜寐（sù）

C．叨扰（tāo）毛坯房（pēi）掂斤播两（bō）

D．摇曳（yì）绊脚石（bàn）趾高气扬（zhì）

答案

答案：B

A、舐犊情深（shì）C、毛坯房（pī）D、摇曳（yè）趾高气扬（zhǐ）

单项选择题

以下关于卖出套利的说法，正确的是( )。

A．卖出价格较高的交割月份期货合约的同时，买入价格较低的另一交割月份的期货合约，属于卖出套利操作
B．如果套利者预期不同交割月份的期货合约价格差很小时，可以进行卖出套利
C．卖出套利是指在反向市场上买入近期合约的同时卖出远期合约
D．卖出套利是指套利者卖出远期合约同时买入近期合约
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单项选择题

Up until a few decades ago, our visions of the future were largely—though by no means uniformly— glowingly positive. Science and technology would cure all the ills of humanity, leading to lives of fulfillment and opportunity for all.
Now utopia has grown unfashionable, as we have gained a deeper appreciation of the range of threats facing us, from asteroid strike to epidemic flu to climate change. You might even be tempted to assume that humanity has little future to look forward to.
But such gloominess is misplaced. The fossil record shows that many species have endured for millions of years—so why shouldn’t we Take a broader look at our species’ place in the universe, and it becomes clear that we have an excellent chance of surviving for tens, if not hundreds, of thousands of years. Look up Homo sapiens in the "Red List" of threatened species of the International Union for the Conversation of Nature (IUCN) and you will read: "Listed as Least Concern as the species is very widely distributed, adaptable, currently increasing, and there are no major threats resulting in an overall population decline."
So what does our deep future hold A growing number of researchers and organizations are now thinking seriously about that question. For example, the Long Now Foundation has its flagship project a mechanical clock that is designed to still be marking time thousands of years hence.
Perhaps willfully, it may be easier to think about such lengthy timescales than about the more immediate future. The potential evolution of today’s technology, and its social consequences, is dazzlingly complicated, and it’s perhaps best left to science fiction writers and futurologists to explore the many possibilities we can envisage. That’s one reason why we have launched Arc, a new publication dedicated to the near future.
But take a longer view and there is a surprising amount that we can say with considerable assurance. As so often, the past holds the key to the future: we have now identified enough of the long-term patterns shaping the history of the planet, and our species, to make evidence-based forecasts about the situations in which our descendants will find themselves.
This long perspective makes the pessimistic view of our prospects seem more likely to be a passing fad. To be sure, the future is not all rosy. But we are now knowledgeable enough to reduce many of the risks that threatened the existence of earlier humans, and to improve the lot of those to come.

Our vision of the future used to be inspired by

A. our desire for lives of fulfillment.
B. our faith in science and technology.
C. our awareness of potential risks.
D. our belief in equal opportunity.
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