毛泽东指出人民军队建设的最根本原则是（ ）。

(单选题)Why did Beatrice come to the author’s house? (单选题)What had Johnny planned to do on New Year’s Eve? (单选题)Why does much work still need to be done according to the la (单选题)What is tech companies’ attitude towards the replacement of (单选题)Which word can replace “emblematic” underlined in paragraph (单选题)What does the first paragraph focus on? (单选题)The text is mainly about ______ (单选题)What does Edmund think of expensive brands? (单选题)Who have the same opinion on expensive brands? (单选题)The example of Jim’s report wants to tell us ______.