【单选题】在Photoshop中,默认状况下 “钢笔工具”的快捷键是 ( )
【简答题】一个灯泡接在电压为220V的电路中,通过灯泡的电流是0.5A,通电时间是1h,它消耗了多少电能?合多少千瓦•小时?
【简答题】阅读理解。 Paragraph 1 Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vege...
【简答题】用所给单词的适当形式完成句子。 1. The ____ (true) is even scientists can't agree on why we need to sleep, 2. We ____ (real) need to get a good night's sleep. 3. Sleep ______ (expert) say it's better not to try too h...
【简答题】一个灯泡接在电压是220V的电路中,通过灯泡的电流是0.5A,通电时间是1h,它消耗了多少电能?合多少度电?
【单选题】在Photoshop中,默认状况下“钢笔工具”的快捷键是( )
【单选题】在Photoshop中,默认状况下 “钢笔工具”的快捷键是 ( )
【单选题】The scientists are___a new car which doesn't need oil.