【单选题】Section A Directions: In this section, you will hear two news reports. At the end of each news report, you will hear two questions. Both the news report and the questions will be spoken only once. Aft...
A.
China's efforts to make the G20 summit a success.
B.
Secretary-General's speech on sustainable development.
C.
Progress in bringing a climate agreement into effect.
D.
An agreement by the US and China for world peace.
【单选题】Directions: In this section, you will hear two news reports. At the end of each news report, you will hear two questions. Both the news report and the questions will be spoken only once. After you hea...
A.
Pursue a higher degree.
C.
Stay healthy after two illnesses.
D.
Enjoy having grandchildren around.
【判断题】英国学者Robert Hooke第一次观察到活细胞有机体。( )
【判断题】英国学者Robert Hooke第一次观察到活细胞。( )
【判断题】英国学者Robert Hooke第一次观察到活细胞有机体。
【单选题】在自动变速器中,当液力变矩器的泵轮和涡轮转速差值愈大时,则( )。
【单选题】在自动变速器中,当液力变矩器的泵轮和涡轮转速差值愈大时,则 。