The most extreme critics of the traditional point of view would say over centuries, that you don't get the full-blown hoplite phalanx that I will be describing to you, even until you get the fifth century B.C.
对传统观点批判最激烈的一种观点,认为这一新型战术,是经过数百年,甚至到了公元前五世纪,才逐渐发展成熟的
The antigen has to be presented to helper T-cells, those helper T-cells have to stimulate a B-cell population to both proliferate and differentiate.
抗原需要被呈递给辅助性T细胞,这些辅助性T细胞需要激活B淋巴细胞,使其增殖和分化
B + A would be--First draw B and from there you draw A.
+ A 就是先画矢量 B,然后再画矢量 A
So this is a - c over b and this is a - c over 2b so this distance and this distance are meant to be the same.
这点是,/b,这点是,/2b,这两段长度应该是相等的
b OK. In this example I'd use b. All right, as b get-- b is the thing that's changing as I go along here, but it could be things like, how many elements are there in a list if the input is a list, could be how many digits are there in a string if the input's a string, it could be the size of the integer as we go along. All right.?
好,在这个例子里我会用,因为b是一直在变的东西,但是也可能是如下情况:,如果输入是数组的话,变化的就是数组的元素数,如果输入是字符串的话,变化的就是字符串的长度,如果是integer的话,可能就是这个数的大小,对不对?
Because if B was just another word for, another way of talking about, A, then to imagine A existing but B not existing would be imagining A existing but-- well, B is just A--A not existing.
因为如果B只是,A的另一种表达方式,那么认为A存在而,B不存在就是认为A存在但,B,也就是A,却不存在
What q2 makes this equal to 0 and Katie's answer is solving out the algebra here is that q2 that solves this must be a - c over b.
2为何值时这个算式等于0呢,凯特回答其实就是算出这个的解,即,q2=/b
Just as forewarning for people who have forgotten what a median is, that means half of you--not approximately half, it means exactly half of you-- will be getting something like B+ and below and half will get something like B+ and above.
稍微提示下忘记中位数含义的同学,这也就是说,不是一半左右,是绝对一半的同学,会得到B+的成绩或更低的成绩,另一半会到B+的成绩或更高的成绩
Maybe we should say, the mere fact that it's possible for A and B to be separate--for A to exist without B for example, that's clearly where they're separate-- the mere fact that it's possible for them to be separate doesn't mean that in the actual world they are separate.
也许我们应该说,A和B有可能不同,比如 可能A存在,而B不存在,这是它们明显的不同之处,它们有可能不同,并不意味着,在现实世界它们也是不同的
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