[单项选择]

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)
A. created
B. developed
C. designed
D. formulated

最新试题

• ●    [填空题]运行中发现风机轴承温度高,应先检查（）和（）是否正常。
• ●    [判断题]依据NGQP13《设计和开发控制程序》，对于全新的无类似产品设计的信息可参考的新产品，产品
• ●    患者，男性，脾脏大小、形态正常，回声不均匀，实质内散在分布多个点状强回声，可能诊断是（）
• ●    From childhood to old age, we all use language as
• ●    [单选题]巷道冒顶空顶部分,可用支护材料接顶,但在碹拱上部必须充填不燃物垫层,其厚度不得小于(
• ●    [单选题]线路设备维修应实行天窗修制度,并实行（ ）的管理。