【单选题】Though Jack was busy, he managed to some time to _____ visit his parents e very week. [ ]
【判断题】相邻的累积增长水平之差等于相应的逐期增长水平。()
【判断题】对于人们的决策,认知偏差既能够带来正面的影响,也能够带来负面的影响。
【简答题】阅读理解 George Stephenson was born in 1781 in a poor family. He had to start work when he was only eight. When George was four, he became his father’s helper. He spent a lot of time learning about en...
【单选题】Though he was very excited about being elected as the president of the student association, many extra responsibilities have been _______________him ever since then.
【简答题】根据首字母或中文意思完成句子 1. Though he has studied English for only two years, he can speak it f____. 2. Our baby is just starting to speak; he has a v____ of about ten words. 3. Try to learn by heart these Engl...