A.時(shí)間 B.數(shù)量 C.范圍 D.順序
A.1cm B.1mm C.6mm D.8mm
A.小于蚊蟲(chóng)幼蟲(chóng)的生長(zhǎng)期 B.大于蚊蟲(chóng)幼蟲(chóng)的生長(zhǎng)期 C.與蚊蟲(chóng)幼蟲(chóng)的生長(zhǎng)期一致 D.與蚊蟲(chóng)生長(zhǎng)期無(wú)關(guān),只要定期即可