【单选题】What is the formation type of the word "teen" and what is the original form?
B.
Back formation, teenager
【判断题】斜齿圆柱齿轮传动比直齿圆柱齿轮传动重合度小。( )
【判断题】苫盖的目的是为了给物品遮阳、避雨、挡风、防尘等。
【简答题】粒子的 E-k 能带图如下图 所示,试确定A、B、C、D四点对应电子有效质量的正负。
【简答题】进站信号机显示一个红色灯光,表示 [填空(1)] 列车越过该信号机。A. 不准
【判断题】毛泽东在党的七大报告中正式确立了实事求是思想路线的指导作用。
【单选题】What is the formation type of the word "wikipedia" and what is the original form?
A.
Clipping, wiki-wiki+encyclopedia (wiki-wiki in Hawaiian refers to Hurry up)
B.
Derivation, wiki is the prefix and pedia is a root
C.
Blending, wiki blends pedia
D.
Back-formation, wikipedia comes from wiki's encyclopedia
【简答题】中国左翼作家联盟(简称左联)旗帜人物是谁?
【判断题】One of the tool to aid in organization is to create a outline. The outline need not be formal .
【判断题】斜齿圆柱齿轮传动比直齿圆柱齿轮传动重合度小。