题型：问答题 在水平方向上做简谐运动的质点，其振动图像如图所示．假设向右的方向为正方向，则物体的位移向左且速度向右的时间段是( )．A．0 s到1 s内B．1 s到2 s内C．2 s到3 s内D．3 s到4 s内 查看答案
题型：问答题 Complete the following passage with the words or phrases in the box. Each word of phrase can only be used once. (共8分)A. choiceB. learnC. fantasticD. interestE. choose No matter whether you have a sweet tooth or not, you can’t miss tasting Swiss chocolate. In Switzerland, you can taste as much chocolate as you like, also you may visit many chocolate museums. You will ________小题1:_______ about the history of chocolate, explore the traditions of Swiss chocolate making, and even watch the chocolate production process. If you have a lot of money, taking a chocolate train can be a good _______小题2:________. It will be a _______小题3:________ journey to sit on a first-class seat, taste yummy chocolate, and visit the chocolate factory. You show no _______小题4:________ in chocolate museums and chocolate trains? Well, a chocolate spa will meet your needs. You can give your whole body a chocolate treat! How sweet it is! 查看答案
