下图中,已知变压器副边电压有效值 U 2 =10V,则图中的 U I = V , U o = V 。
A.
4.5 9
B.
12 9
C.
12 -9
D.
9 9
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【多选题】The poem “The Red Wheelbarrow” presents ordinary objects like “wheelbarrow” and “rainwater” as the images. What are the hidden symbolic meanings of them?
A.
Rainwater are gifts blessed by nature.
B.
Wheelbarrow is created by human beings, and it can symbolize the people’s diligence.
C.
The poet, by using these two images, appears to respect and acknowledge gratitude for nature.
D.
Wheelbarrow is a farming tool, and it can symbolize the miseries of the oppressed and poor working people .
【简答题】We depend on metaphors to create vivid images, but we encounter two more major problems: Sustainable metaphors are hard to find and they may __________(选词填空:constrict; articulate) our reader's underst...
【简答题】We depend on metaphors to create vivid images, but we encounter two more major problems: Sustainable metaphors are hard to find and they may ______ our reader's understanding of what we are trying to ...