【单选题】The bad news was that he could be a very dangerous person ______ he choose to be.
【判断题】可持续发展指既满足当代人的需要,又不对后代人满足其需要的能力构成危害的发展。
【判断题】当电气设备(例如机器人或控制器)起火时使用二氧化碳灭火器。也可以用水或泡沫。
【简答题】The ____________ look on his face suggested that he must have heard some ____________ news. (surprise)
【判断题】当电气设备(例如机器人或控制器)起火时,可以使用二氧化碳 泡沫灭火器。
【单选题】Questions 16 and 18 are based on the news report you have just heard. 17.
A.
They feel stressed out even without any challenges in life.
B.
They feel too overwhelmed to deal with life’s problems.
C.
They are anxious to free themselves from life’s troubles.
D.
They are exhausted even without doing any heavy work.
【单选题】我国第一座电视台中央电视台的前身是( ),于1958年5月1日开始实验播出,标志着中国电视事业的开端。