A/B testing isn’t something you can generally complete overnight, though it depends on exactly what you’re testing.
一般而言，A/B测试不是一夜之间就可以完成的，而是取决于你所需要测试的项目。
Visitor B: Sorry, I don't know exactly. You may go to the Information at the Expo Site entrance.
参观者b：对不起，我不清楚，在世博园区入口处设有问询处，你可以去问问。
And speaking of options, Virgin also offers a standard U. s. B. plug-in cellular modem with exactly the same pricing details.
谈到选择，维珍也提供一种标准的USB接口无线Modem，其定价细节也完全一样。
This is just like the famous Adelson checkerboard optical illusion. In the image below, square a is exactly the same shade as square b, but they look totally different.
这个例子和著名的阿德尔森棋盘错觉是一样的。在如下的图像中，方块a和方块b的色度是一样的，但是他们看起来完全不同。
Weigh weight a and weight B, and you'll find weight a weighs exactly the weight of weight B.
把重物a和重物B称一下，你就会发现：重物a的重量恰好与重物b的重量相等。
What exactly does "key" mean, in the context of B-Trees?
“关键”到底是什么意思，在b树吗？
Balance shapes. If you make both of the inner forms (counters) of the 'b' exactly the same, the top counter will optically look bigger.
如果你把字母“B”上下两个内部形状(字怀)弄得完全一样，上面的字怀在视觉上就会更大。
B. 999 AD Quetzalcoatl died. Exactly 52 years, the length of one Heaven.
公元999年羽蛇神死去，正好是52年，一个天堂的长度。
B. 999 AD Quetzalcoatl died. Exactly 52 years, the length of one Heaven.
公元999年羽蛇神死去，正好是52年，一个天堂的长度。
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