The condition first came to the attention of the medical community when a Swiss woman tried to cross the border into the United States, which requires non-citizens to be fingerprinted upon entry. 这一情况第一次引起医学界的重视是一位瑞士的女士试图入境美国的时候。入境是需要采集非本国公民的指纹的。
Assuming that withdrawals during the year amounted to$ 10 for Blair and$ 100 for Cross, the entry at December 3 to close the drawing accounts is as follows 假设本年度布莱尔提用10美元,克罗斯提用100美元,12月3日提用帐户的结帐分录如下
By the way, this minus sign here is actually related to the way in which, when we do a cross product, we have a minus sign for the second entry. 顺便说一下,这里这个-号实际上和,我们做交叉乘积的时候的方法是有联系的,我们在算第二项前面是-号。