【多选题】城市轨道交通的信号主要有( ) 轨旁指示标志和手信号等。
【简答题】用所给词的适当形式填空。 l. He worked hard and has_____ (great) improved his English. 2. My mother always _____ (courage) me to study hard. 3. We all think Nie Haisheng and Fei Junlong are both_____ (hero), 4. Le...
【单选题】城市轨道交通的信号主要有固定信号、车载信号、轨旁指示标志和( )。
【简答题】用所给词的适当形式填空。 1. I think you have made a good (decide). 2. He told me that he (go) to the beach the next day. 3. We're supposed (finish) homework on time. 4. The boys (play) soccer when I got there. 5....
【判断题】全球定位系统使用的卫星轨道均为近圆型,运行的周期约为24小时。
【简答题】用所给词的适当形式填空。 1. He would like ________ (eat) dinner with friends. 2. We all have fun ________ (learn) English. 3. Please don’t ________ (listen) to music in class. 4. Let’s ________ (take) a walk in t...
【判断题】全球定位系统使用的卫星轨道均为近圆型,运行的周期约为 24小时。
【简答题】用所给单词的适当形式填空。 1. He said, 'We all know that Beijing _____ (hold) the 2008 Olympic s in several months'. 2. The _____(act) is taking an _____(act) lesson. 3.I have to _____ (practice) my English. 4...