We have been doing business with them." British Petroleum plans to plug the leaking oil well with an experimental well cap.
VOA: standard.2010.05.08
As every time we introduce a new programming concept, we'll relate it back, as we have been doing consistently, to defensive programming.
我们每次介绍一个,新的编程概念的时候,就会和以前讲的联系起来,就和我们介绍防卫性程序设计一样。
So the correct answer for titanium plus two Ar3d2 is going to be argon 3 d 2, whereas if we did not rearrange our order here 4s2 we might have been tempted to write as 4 s 2 so keep that in mind when you're doing the positive ions of corresponding atoms.
所以正2价钛离子,的正确答案是,然而如果我们不重新安排顺序,我们可能会写出2,所以请记住,它当你们在解关于原子,的正离子的时候。
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