sat 语法题一道.(They use light that is 100 million times dimmer than the midday sun,and )tropical nocturnal sweat bees leave their nests to forage for food.B.By using light that is 100 million times dimmer than midday,C.In light that is 100

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sat 语法题一道.(They use light that is 100 million times dimmer than the midday sun,and )tropical nocturnal sweat bees leave their nests to forage for food.B.By using light that is 100 million times dimmer than midday,C.In light that is 100

sat 语法题一道.(They use light that is 100 million times dimmer than the midday sun,and )tropical nocturnal sweat bees leave their nests to forage for food.B.By using light that is 100 million times dimmer than midday,C.In light that is 100
sat 语法题一道.
(They use light that is 100 million times dimmer than the midday sun,and )tropical nocturnal sweat bees leave their nests to forage for food.
B.By using light that is 100 million times dimmer than midday,
C.In light that is 100 million times dimmer than the midday sun,
正确答案是c.为什么不能选b

sat 语法题一道.(They use light that is 100 million times dimmer than the midday sun,and )tropical nocturnal sweat bees leave their nests to forage for food.B.By using light that is 100 million times dimmer than midday,C.In light that is 100
用B选项的前提是后面的句子的主语是They,否则这里就缺少逻辑主语了.
将分句用非谓语形式表达的时候,需要做到前后主语一致,即后面的句子也要求是They做主语.

帮帮忙,谢谢了。 你好。答案是B. Nursing 和physical therapy 是主句。 不过,这道题出得不严谨,因为have shortages in staffing的主语也可以是

这道题主语是tropical nocturnal sweat bees
是动作using 的发出者
因为bee 不可以“use” 是人的动作,所以只能说他们在“in”一种light 中
希望帮到你~~