请教 大全－c－12

steveyangxt

As a first step in testing this theory, lepidopterists plan to install a low-voltage transmitter inside one grove of “butterfly trees” in the Mexican forests. If the butterflies are either especially attracted to the grove with the transmitter or especially repelled by it, lepidopterists will have evidence

我觉得上面的前提是低压电流传感器， 所以结论出现电流使相关的。 毕竟是试验的初级阶段嘛，以后怎么搞我们不知道， 也管不着。

judiwind2006

up

fengyun1

我也错在D。关于D，我有不同的看法。原文的结论就是D,Scientists theorize that monarchs, like homing pigeons, map their routes according to the earth’s electromagnetic fields. 后来他是要作一个实验来说明他有evidence ，所以肯定答案不会是D，否则conclusion=evidence。

luckyouyang

C选项太黑了，其它选项都是monarch butterflies ，C选项变成了：low-voltage electricity can affect butterflies, whether positively or adversely

Xunan

我选的B`