【简答题】If the impact factor of a journal in 2017 is 1.5 and there are 2000 articles published on this journal from 2015 to 2016, these articles have been cited for totally (number)times in 2017.
【简答题】Sam has been a (1) for (2) years. He has done everything from (3) to (4) work.
He has also done (5) work and now he is (6). Sam thinks (7) is a very stressful job, but it depends on the assignment on...
【单选题】高压单台三相电容器的电容元件组在外壳内部一般接成( )。
【判断题】The influence of an author’s journal articles can be evaluated by the impact factor(IF).
【简答题】“吃一堑,长一智”,“塞翁失马,焉知非福”,根据这些说法谈谈正确的得失观应该是怎样的?
【单选题】当要传播的信号频率在30兆赫兹以上时,必须使用()方式