题干

①、②、③、④、⑤是使用操作显微镜的几个步骤。下图为显微镜观察中的两个视野,其中细胞甲为主要观察对象,由视野(1)到视野(2)时,操作过程的正确顺序是①转动粗准焦螺旋  ②转动细准焦螺旋   ③调节光圈  ④转动转换器   ⑤移动玻片

A:①→②→③→④

B:③→①→②

C:⑤→④→②→③

D:④→⑤→①→②

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C

同类题2

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                                                                  Warley Woods Community (社区) Trust

    Welcome to our third news letter of the year!

    Our main activity for March is our Walk for the Woods fundraising events on Saturday, 17th March, starting any time between 10 a.m. and 2 p.m. We will be walking the distance between Warley Woods and Tipperary. It is indeed a long way — 80 miles. The more people that you can get sponsor you, the more money we can raise to helplook after our beautiful woodland. More information is available at ourwebsite.

    The Sunday volunteers planted two beeches and an oak last week. This was thanks to the money from the Big Tree Plant and to Lisa and Gordon Whitiker, whose friends gave money forthe big trees instead of for their wedding presents. Thanks to everyone who took part.

    There were 15 volunteersat the Oral History Training Day which was led very ably by Julia Letts. The group will be meeting again and will start to interview the local people whohave offered to tell their stories. We are happy to hear from others who would like to be interviewed about their memories of the Woods for the project. If you or anyone you know is interested, please call Viv Cole at the office. This project is financed by Heritage Lottery Fund.

    There was a huge response to the Forest Schools activities held at half term. These will be held again during the Easter holidays on the following dates: 4th April from 10 a.m. to 3 p.m. for over 8s. On 12th April form 10 a.m. to 12 noon, there will be a Teddy Bears' Picnic for the under 8s. All these must be booked in advance.

    Finally, don't forget the Easter Egg Roll on Bank Holiday, 9th April, staring at 11 a.m. Bring your ownhard-boiled and decorated egg to roll down the hill in the woods. The firstpast the finishing line will win a large chocolate egg! This year, due to popular demand, there will also be an Adults' Easter Egg Roll following the children's competition.

    We look forward to seeing you all soon, at one of our many events.

同类题4

阅读下面流沙河的《就是那一只蟋蟀》中的片段完成下列问题。
                                                                                   就是那一只蟋蟀
                                                                                   就是那一只蟋蟀
                                                                                   在海峡那边唱歌
                                                                                   在海峡这边唱歌
                                                                                   在台北的一条巷子里唱歌
                                                                                   在四川的一个乡村里唱歌
                                                                                   在每个中国人所到之处
                                                                                   处处唱歌
                                                                                   比最单调的乐曲更单调
                                                                                   比最和谐的音响更谐和
                                                                                   凝成水
                                                                                   是露珠
                                                                                   燃成光
                                                                                   是萤火
                                                                                   变成鸟
                                                                                   是鹧鸪
                                                                                   啼叫在乡愁者的心窝
                                                                                   就是那一只蟋蟀
                                                                                   在你的窗外唱歌
                                                                                   在我的窗外唱歌
                                                                                   你的倾听
                                                                                   你的想念
                                                                                   我在倾听
                                                                                   我在吟哦
                                                                                   你该猜到我在吟些什么
                                                                                   我会猜到你在想些什么
                                                                                   中国人有中国人的心态
                                                                                   中国人有中国人的耳朵