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According to the text, mathematicians present a risk to scientists for which of the following reasons?
A．Mathematicians may provide theories that are incompatible with those already developed by scientists.
B．Mathematicians may define situations in a way that is incomprehensible to scientists.
C．Mathematicians may convince scientists that theoretical assumptions are facts.
D．Scientists may come to believe that axiomatic statements are untrue.此题为多项选择题。

A.Mathematicians
B.
B．Mathematicians
C.
C．Mathematicians
D.
D．Scientists
E.

【参考答案】

C
细节推理题。根据题干中的关键词risk定位到原文第三段第七句。原句中danger后面的同谓语从句，可以推断出......

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单项选择题

按时间顺序记载一定范围内发生的重大事件的课程复习资料叫做()。

A.时事
B.年鉴
C.大事记
D.专题概要

未分类题

No matter how many times you have seen images of the golden mask of boyking Tutankhamen, come face to face with it in Egypts Cairo museum, and you will suck in your breath. It was on Nov. 4, 1923, that British archaeologist Howard Carter stumbled on a stone at the base of the tomb of another pharaoh(法老)in Luxor that eventually led to a sealed doorway. Then, on Nov. 23, Carter found a second door and when he stuck his head through it, what he saw was to suck the world. Inside lay the great stone coffin, enclosing three chests of gilded wood. A few months later, when a crane lifted its granite cover and one coffin after another was removed; Carter found a solid block of gold weighing 110kg. In it was the mummy(木乃伊)of the 19-year-old Tutankhamen, covered in gold with that splendid funeral mask. And all this lay buried for more than 3, 000 years. Months after my trip to Egypt, I can relive the rush of emotion I felt and sense the hush that descended on the crammed Cairo museums Tutankhamen gallery. Cairo, a dusty city of 20 million people, is a place where time seems to both stand still and rush into utter chaos. It is a place where the ancient and contemporary happily go along on parallel tracks. Take the Great Pyramids of Giza, sitting on the western edge of the city. Even as the setting sun silhouettes these gigantic structures against the great desert expanse, a call for prayer floats over semifinished apartment blocks filled with the activity of city life. While careful planning for the afterlife may lie buried underground in Cairo, it is noise and confusion on the streets. Donkey carts battle for space with pedestrians and the only operative road rule is ' might is right. ' But it is a city that is full of life—from the small roadside restaurants to the coffee shops where men and women smoke the shisha(水烟壶). Donkey carts piled high with flat-breads magically find their way in and out the maddening traffic; young women in long skirts and headscarves hold hands with young men in open collar shirts, while conversations dwell on Kuwaits chances at the soccer World Cup.According to the context, 'suck in your breath' means 'feel a sense of______'.A．aweB．horrorC．doubtD．delight此题为多项选择题。