【单选题】乔布斯曾经说过,当产品人不再是推动公司前进的人,而是由营销人推动公司前进,这种情况是最危险的。很多公司有非常杰出的工程师和聪明的员工,但是从根本上而言,这些公司更需要将所有一切集合在一起的“地心引力”,即产品。这体现了苹果公司()的经营理念。
【判断题】The so-called lucky numbers actually have nothing to do with one’s luck or fortune.
【单选题】设A={a,b,c,d},A上的关系R={(a,b),(a,c),(c,a),(d,c),(d,d)},则R的逆关系为
A.
{(d,d),(d,c),(c,a),(a,c),(a,b)}
B.
{(b,a),(a,c),(c,a),(c,d),(d,d)}
C.
{(a,a),(b,b),(c,c),(a,d),(b,c),(b,d)}
D.
{(a,a),(b,b),(c,c),(b,a),(d,a),(c,b),(a,d),(b,c),(d,b),(b,d),(c,d)}
【单选题】设A={a,b,c,d},A上的关系R={(a,b),(a,c),(c,a),(d,c),(d,d)},则R的补关系为
A.
{(d,d),(d,c),(c,a),(a,c),(a,b)}
B.
{(b,a),(a,c),(c,a),(c,d),(d,d)}
C.
{(a,a),(b,b),(c,c),(a,d),(b,c),(b,d)}
D.
{(a,a),(b,b),(c,c),(b,a),(d,a),(c,b),(a,d),(b,c),(d,b),(b,d),(c,d)}
【简答题】Read this extrac from an article called Famous Mums and Dads and complete the gaps with the best form of the verb in brackets. 'It (1) was my birthday yesterday: I'm 14 years old. Some people say I'm ...
【单选题】According to the authors, the motivation to promote and protect a self-view of being competent, attractive, lucky, ethical, valued, and so forth is called:
【单选题】20170246下列关于页眉和页脚的叙述中,不正确的是(46 )
【简答题】We are a small business and we are just starting, so we don't buy all our office equipment. We ______ things like photocopiers, printers, and the machines in our cafeteria. We are lucky because there...
【单选题】Finding a Job At sixteen Ron Mackie might have stayed at school, but the future called to him excitedly. 'Get out of the classroom into a job, ' it said, and Ron obeyeD.His father, supporting the deci...
A.
His father made him leave
B.
He had reached the age when he had to leave.
C.
He left because he was worried about the future.
D.
He left because he wanted to start work.
【单选题】在一定温度下,压缩因子随压力的变化关系正确的描述是( )
C.
随着 压力的增加,压缩因子可能先变小然后变大