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问题

我国古代的最高学府太学设在（　　）

A．洛阳

B．长安

C．咸阳

D．开封

答案

答案：B

题目分析：此题从设立学府教育的角度考查儒学在封建正统思想中的地位。汉武帝把儒学设为正统地位后，在长安设立太学，大力推行儒家教育，以四书五经为为主要教材。从选项中B符合题意故选B。

单项选择题

鼓形补偿器是依靠每片鼓膜的（）来吸收煤气管道的伸缩量。

A.弹性变形

B.收缩量

C.伸张量
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单项选择题

Most plants can make their own food from sunlight, (1) some have discovered that stealing is an easier way to live. Thousands of plant species get by (2) photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3) of fungi(真菌). But in (4) a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5) are (6) , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7) of a common type of fungus, so (8) that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9) at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.

Plants have (10) relations to get what they need to survive. Normal, (11) plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have (12) a symbiotic relationship with a (13) network of what are called my corrhizal fungi, which lies beneath the forest (14) . The fungi help green plants absorb minerals through their roots, and (15) , the plants normally (16) the fungi with sugars, or carbon with a number of plants sharing the same fungal web, it was perhaps (17) that a few cheaters—dubbed epiparasites—would evolve to beat the system. (18) , these plants reversed the flow of carbon, (19) it into their roots from the fungi (20) releasing it as "payment.\

8（）

A.popular

B.common

C.ordinary

D.widespread
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