【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
【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.
【多选题】有了在线开放课程后,教师开展翻转课堂,学生学习往往达不到预期的结果,原因有哪些()
A.
长期以应试为目标的知识灌输式教育养成的被动学习观念和习惯
【单选题】Jack hurt his leg yesterday. Now he is in the hospital. ____________
C.
I’m sorry to hear that.