The list of recommendations includes: (1) keeping the two existing indexes on the CUSTOMER table and (2) creating 1 index and keeping 1 index for the DISTRICT table.
建议包括:(1) 保留 CUSTOMER 表上已有的两个索引,并且(2) 创建一个索引,保留用于 DISTRICT 表的一个索引。
But you cannot always be on the top level. Otherwise Ferrari and McLaren would win all the RACES with a 1-2, or 1-3, or a 1-4, and the first four places would be sold to Ferrari and McLaren.
但是你不可能一直处在巅峰水平,否则法拉利和迈凯轮将会赢得所有比赛的1 - 2名、1 - 3名或1 - 4名,头4名总归会是法拉利或和迈凯轮的。
The score remained 2-1 and Germany went on to win 4-1 to advance to the quarterfinals.
VOA: standard.2010.06.29
So, we need to actually add on this fourth quantum number, 1/2 and it's either going to be plus 1/2 or negative 1/2.
所以我们需要加上这第四个量子数,它等于1/2或者负的。
So, if you compartmentalize things in your brain in certain ways, put that off into the end of the exam 1 part of your brain, and now we're going to move on to exam 2.
如果你喜欢以自己的方式将信息在大脑中分开储存,这就是你大脑里对第一次考试的分区所存储的全部内容,而接下来我们将继续将第二次考试的内容。
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