选择第一项，然后点击添加。
Make sure the first option is selected and then click on Add.
然后基于价值选择第一项设置第二个选择项的默认值。
And then based on the value selected in first item set the default value for the second selected item.
我怎样才能做一个WPF快捷菜单自动选择第一项的时候开的呢？
How can I make a WPF ContextMenu automatically select the first item when it's opened?
在BIOS中设置光驱发起，选择第一项即可自动设备到硬盘第一分区。有躲藏分区的品牌机主张手动设备。
In the BIOS setup cd-rom, select the first automatic equipment to hard disk partition first. Have a hidden partition name-brand computer manual equipment.
选择addasattributetoabusinessobject图标并添加第一项属性。
Select the add as attribute to a business object icon and add the first attribute.
因此，第一项任务就是确保选择的数据绑定API 能够用于接收的数据，而且最好是转化的过程尽量简单。
So your first task is to ensure that you can supply your data binding API with data that it accepts, ideally without a lot of effort converting what you get from the endpoint.
在生物学E /M测试的第一项安排在常见的答案选择。
The first items in the Biology E/M test are arranged in sets with common answer choices.
若要选择多个连续的项，单击第一项，按住Shift，然后单击最后一项。
To select contiguous items, click the first item, hold down the SHIFT key, and then click the last item.
安装版本选择使用了类似栅格控制的布局，第一项是产品名称，第二项是修改日期。
The SKU selection uses something like a grid control , the 1st column is SKU name, and 2nd, Date Modified.
安装版本选择使用了类似栅格控制的布局，第一项是产品名称，第二项是修改日期。
The SKU selection uses something like a grid control , the 1st column is SKU name, and 2nd, Date Modified.
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