题目:
最早研究虫洞的是霍金()
答案:
参考答案:错
最早研究虫洞的是霍金()
参考答案:错
某机场场道全长3200m,宽度45m,根据当地情况,设计底基层采用级配碎石、基层采用水泥粉煤灰稳定碎石。为了有效地对施工进度进行控制,施工单位绘制了S曲线(见下图),利用S曲线将实际施工进度与计划施工进度进行了对比。
问题
(1)该工程最终退后几天完成?
(2)该工程计划进度与实际进度相符的时间是第几天?
(3)第9天的施工进度状况如何?
在研究欧洲文艺复兴运动和启蒙运动时,有学者指出:如果说文艺复兴为人文主义者们“清理了场地”,那么启蒙运动则是“大兴土木”。这里的“大兴土木”是指[ ]
A.摧毁蒙昧和宗教势力
B.建设工业文明国家
C.弘扬理性和科学思想
D.创立民主共和国家
实验室里需用480mL 0.1mol·L-1的CuSO4溶液,现选取规格为500 mL的容量瓶进行配制,以下操作正确的是
A.称取7.68 g CuSO4,加入500 mL H2O
B.称取12.0 g CuSO4 ·5H2O,配成500 mL溶液
C.称取8.0 g CuSO4,加入500 mL H2O
D.称取12.5 g CuSO4·5H2O,配成500 mL溶液
Shams and delusions are esteemed for soundest truths, while reality is fabulous. If men would steadily observe realities only, and not allow themselves to be deluded, life, to compare it with such things as we know, would be like a fairy tale and the Arabian Nights’ Entertainments. If we respected only what is inevitable and has a right to be , music and poetry would resound along the streets. When we are unhurried and wise, we perceive that only great and worthy things have any permanent and absolute existence, --that petty fears and petty pleasure are but the shadow of reality. This is always exhilarating and sublime. By closing the eyes and slumbering, by consenting to be deceived by shows, men establish and confirm their daily life of routine and habit everywhere, which still is built on purely illusory foundation. Children, who play life, discern its true law and relations more clearly than men, who fail to live worthily, but who think that they are wiser by experience, that is, by failure. I have read in a Hindoo book, that “there was a king’s son, who, being expelled in infancy from his native city, was brought up by a forester, and, growing up to maturity in that state, imagined himself to belong to the barbarous race with which be lived. One of his father’s ministers having discovered him, revealed to him what he was, and the misconception of his character was removed, and he knew himself to be a prince. So soul, from the circumstances in which it is placed, mistakes its own character, until the truth is revealed to it by some holy teacher, and then it knows itself to be Brahme.” We think that that is which appears to be. If a man should give us an account of the realities he beheld, we should not recognize the place in his description. Look at a meeting-house, or a court-house, or a jail, or a shop. Or a dwelling-house, and say what that thing really is before a true gaze, and they would all go to pieces in your account of them. Men esteem truth remote, in the outskirts of the system, behind the farthest star, before Adam and after the last man. In eternity there is indeed something true and sublime. But all these times and places and occasions are now and here. God himself culminates in the present moment, and will never be more divine in the lapse of all ages. And we are enabled to apprehend at all what is sublime and noble only by the perpetual instilling and drenching of the reality that surrounds us. The universe constantly and obediently answers to our conceptions; whether we travel fast or slow, the track is laid for us. Let us spend our lives in conceiving then. The poet or the artist never yet had as fair and noble a design but some of his posterity at least could accomplish it.
小题1: The writer’s attitude toward the arts is one of
[A]. admiration. [B]. indifference. [C]. suspicion. [D]. repulsion
小题2:The author believes that a child.
[A]. should practice what the Hindoos preach.
[B]. frequently faces vital problems better than grownups do.
[C]. hardly ever knows his true origin.
[D]. is incapable of appreciating the arts.
小题3:. The author is primarily concerned with urging the reader to
[A]. look to the future for enlightenment. [B]. appraise the present for its true value.
[C]. honor the wisdom of the past ages. [D]. spend more time in leisure activities.
小题4: The passage is primarily concerned with problem of
[A]. history and economics. [B]. society and population.
[C]. biology and physics. [D]. theology and philosophy.
如图所示,理想变压器的原副线圈匝数比n1:n2=1:10,副线圈与阻值R=20Ω的电阻相连.原线圈两端所加的电压u=20sin20πt(V),则( ) A.副线圈输出交流电的频率为10Hz B.交流电压表的示数为20V C.电阻R上消耗的电功率为2kW D.原线圈中电流的最大值为100A |