搜题请搜索小程序“爱下问搜题”
问题 选择题

如果在一年里全社会用现金支付的销售商品总量为5000亿件，平均每件价格水平为8元，在这一年里货币平均周转5次，那么，这一年里货币发行量应为_______亿元。如果这一年实际发行了16000亿元纸币，这时的1元钱相当于_______元，这会引起_______。 [ ]

A．8000；0．5；通货膨胀

B．4000；0．2；购买力降低

C．16000；2；纸币升值

D．2000；3；购买力提高

答案

答案：A

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.\

14（）

A.floor

B.level

C.ground

D.layer
查看答案
单项选择题

应选用不易破损的包装，以保证药品在运输、贮藏、使用过程中的质量

A．由其所在单位给予行政处分
B．由公安机关依照治安管理处罚条例处罚
C．由司法机关追究刑事责任
D．没收全部麻醉药品和非法所得
E．以生产，贩卖毒品论处
查看答案