| 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 commo A. but B. if C. because D. though [单选题]《铁路旅客运输规程》第二十条中规定，学生票限于使用（），使用普通旅客列车硬卧时应当补收票价差额。
A.普通旅客列车和动车组列车一等座 B.普通旅客列车和动车组列车二等座 C.普通旅客列车硬座和动车组列车二等座 D.普通旅客列车硬座和动车组列车一等座 [简答题]高线轧机轧辊轴向调整有哪些注意事项？
[单选题]TT系统是指电源中性点直接接地,而设备的外露可导电部分经各自的PE线分别直接接地的()低压供电系统
A.三相五线制 B.三相四线制 C.三相三线制 [多选题]“三违”是指（ ）
A.A、违章指挥 B.B、违章作业 C.C、违反劳动纪律 D.D、违反操作规程 [单选题]警示带在管道新建、改线和大修施工过程中，随管体回填埋入地下，位于管顶上方（ ）。
A.0.1m B.0.3m C.0.5m D.1m [多项选择]土地登记的空间分析功能是诸如地籍管理信息系统此类GIS系统所特有的功能，其结果是原来的要素被______，然后生成新的要素。
A. 裂解 B. 剪断 C. 分割 D. 组合 E. 套合 [单选题]Question休克经处理后，微循环改善的最重要的指标是
A.神志恢复清楚 B.皮肤颜色转红 C.肢端温度上升 D.血压回升 E.尿量增多 我来回答: 提交
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