在众多的公民权利中,有一类权利与我们的生命历程形影不离,也是公民最基本、最重要的权利。它就是　(　　)

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There are three monkeys in the zoo. The brown monkey is stronger than the yellow monkey. The yellow monkey is taller than the brown one. The little monkey is yellow,too. It's the youngest. Its tail is 38 cm long. It is only 40 cm tall. The yellow monkey is 150 cm tall. Ben is 160 cm tall.

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蝗虫能给人类带来很大的危害，通过对蝗虫的生殖和发育的研究，我们知道灭蝗的最佳时期是（　　）