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Description
大偵探福爾摩斯-數學偵緝系列#4 皇后號遇難記: : 4
作者: 厲河 | 繪者: 月牙
與主角們一起破解謎題，訓練數學計算能力！
福爾摩斯與華生等人乘搭郵輪「皇后號」出遊，卻遇上事故，被逼在一個小島暫宿。由於旅客眾多，島上燃料不敷應用，於是他們到當地的燃油公司買油。豈料公司老闆坐地起價，還以複雜數學問題刁難，究竟大偵探能否成功破解？
本書還收錄布偶秘藏寶石、走私紅酒、羊駝失竊合共4個短篇故事，當中加入多個與數學相關的謎題。大家看故事之餘，也能動動腦筋，提升數學運算與邏輯思考的能力呢！
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4.4 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
It’s Poyfect!
Color: White, Number Of Shelves: 2, Size: 35.4inch(set of 2), Color: White, Number Of Shelves: 2, Size: 35.4inch(set of 2)
i’ve been wanting this shelf for quite some time and finally decided I’m doing it. I’m absolutely completely satisfied with the size the quality of the wood and the paint job. It’s made very well. I have to say I was surprised at how nicely sanded it was and ready to hang.
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Great addition to nursery
Color: Walnut, Number Of Shelves: 4, Size: 16inch(set of 4)
Love it!
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Good finish, nice wood, good price
I have done quite a lot of woodworking in my life, and this is a nice piece of work. Great finish and nice looking.
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Reviewed in the United States on October 7, 2024
★★★★★ 5
Easy install
Just installed in our bathroom. Feels solid. We have a potted plant on it now. You will want a drill bit extender to clear the shelf. I use the flexible type. Otherwise you won’t be able to get the screws in at a 90 degree angle.
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Reviewed in the United States on December 26, 2024
★★★★★ 4
Very nice, well made.
The nine-inch oak shelf is well made, and is 45 degrees. The wall where I planned to install it was not, and I suspect this is the problem some of the reviews saying the shelf was not made at 45 degrees. In my case, we removed wood a bit at a time until we achieved a good fit. We did receive all of the hardware, but beware. The plastic straight insert anchors do not snug up with the supplied screws. However we used the supplied plastic toggles with better results. The hardware is why I rate this 4 stars. Otherwise, it is a nice piece, and well worth the price.
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Reviewed in the United States on September 13, 2024