It is u____ acknowledged that people cannot succeed or achieve their targets without a strong will and persistence.
“探究温度和湿度对霉菌生长的影响”实验中,我们发现霉菌的生活环境是( )
589÷73=____
你正排队买东西,一个后来的人插到你前面。遇到这种情况,你认为委婉得体的说法是( )