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问题 选择题

下列各句中，标点符号的使用合乎规范的一项是[ ]

A、“哈！这模样了！胡子这么长了”！一种尖利的怪声突然大叫起来。

B、母亲有点迟疑不决，她怕花钱；但是两个姐姐赞成。

C、“好吧。”他在心里想：“谁爱怎么读就怎么读，我不管了。”

D、母亲和我都叹息他的景况：多子、饥荒、苛税、兵、匪、官、绅，都苦得他像一个木偶人了。

答案

答案：B

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.\

6（）

A. getting by

B. getting on

C. getting through

D. getting over
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单项选择题

患者，女，46岁。月经紊乱近1年，先后不定期，量少、色红，伴烘热汗出，烦躁易怒，头晕耳鸣，舌红少苔，脉细数。治疗应首选

A．左归丸
B．六味地黄丸
C．左归饮合二至丸
D．知柏地黄丸
E．归肾丸
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