【判断题】盘形制动车轮踏面没有与闸瓦的摩擦,所以相对于闸瓦制动轮轨黏着系数下降了。()
【单选题】—Jack hurt his arms while playing basketball yesterday afternoon. —________. [ ]
D.
I'm sorry to hear that
【判断题】实时系统与分时及批处理系统的主要区别是多道性和可靠性。
【单选题】In the hospital,____________.
A.
the doctor tells Jack that he is seriously ill
B.
Jack tells the doctor that he is running a high fever
C.
the doctor wants to see if Jack’s lungs are all right
D.
Jack tells the doctor that he’s hurt his body badly
【多选题】“一带一路”倡议提出的时间分别是( )。
【单选题】Jack hurt his right leg when he jumped from a table ________ days ago.
【单选题】Jack hurt his leg yesterday. Now he is in the hospital. ____________
C.
I’m sorry to hear that.
【简答题】实时系统与分时及批处理系统的主要区别是()性和()性。
【简答题】五、词汇运用 (一)根据汉语或首字母提示用所学单词的正确形式完成下列句子。(每小题1分,共10分) 1. The manager said to the worker, “Get to work or ______________ (辞职) right now.” 2. The professor instructed his students to ______________ (服从) the...