不定项选择 新时期最鲜明的特点是发展生产力。

单项选择题 Which of the following quotations seeks to establish goodwill? A、The which if you with patient ears attend, / What here shall miss, our toil shall strive to mend. B、For your voices I have fought; / Watch’d for you voices. C、I have been studying how I may compare / This prison where I live unto the world. D、Good Ursula, wake my cousin Beatrice, and desire her to rise.

单项选择题 ‍查询期刊影响因子的数据库是‎