The -d option defines the system properties.

d选项用于定义系统属性。

youdao

D: This option handles keywords that hash to duplicate values.

D：该选项将处理散列为重复值的关键字。

youdao

The [d] option indicates that one of the fields must be sorted in descending order.

选项指明其中一个字段必须按降序排列。

youdao

putting all those things together, if you looked at this question again we'd get 100% on it, 0 9 that our only option here is 0. 9, and that it's not the negative, it's the positive version, because we're talking about how much energy we have to put into the system in order to eject an electron.

把这些放在一起，你们再看一下题目,大家100%都能选对，我们唯一的选择就是这个，它不是负数，它是正的，因为我们说的，是要,把电子激发出来,需要提供的能量。

麻省理工公开课 - 化学原理课程节选

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When 3-D comes to television sets, the studios will also have the option of charging more for 3-D DVDs and reissuing their libraries in 3-D.

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The difference is that it will now be offered with a 2, 560 x 1, 440 screen, which will be standard in certain regions, like Europe. (Elsewhere, a 1080p IPS panel will continue to be the base option.) As you'd expect, Acer's upgraded the S7 to Haswell CPUs (Core i3, i5 and i7), but it also squeezed in a bigger battery -- 47Wh, up from 35Wh.

ENGADGET