【简答题】![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
观察是科学探究的一种方法.科学观察需要工具,显微镜就是其中一种工具
(1)实验室使用显微镜观察的顺序是:取镜和安放、______、放片、调焦,观察,收镜,整理实验台.
(2)如果观察到物像在视野的左下方,要想把物像调到视野中央(如图),应将装片向______移.
(3)使用显微镜观察时,如果光线过强,应______
①大光圈;②平面镜;③小光圈;④凹面镜
(4)某显微镜目镜有10X和20X,物镜有8X和45X,用这台显微镜观察,最大放大倍数是______.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAA5ElEQVRYR2NkGGDAOMD2M+B0wKpVq9huv/jbxPD/fxwDA4MkhQ59zsDIuEhVgrkuLCzsF7JZOB3QOml5B8P//+UUWoyqnZGxszovsoI4B0xc9gyfzxmZmb2rcsK3IRvWMWm599///7fgcfTz6vwoKWId8B+f75kZGX0q8iK3kugAhur8KJRQxx0FE5fhdQC5UTPqgNEQGA2B0RAYDYHREBgNgaETAuTW96TqG7yt4tbRFhGRIQBqHTP9+8dIoDUMTxqk5AK8zXKYiaDWMYhNpANIaJYPdMdkwLtmpOZnctUPeDkAAP6tmiH1ggTLAAAAAElFTkSuQmCC)
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