【单选题】She pretended ________ me when I passed by.
【单选题】She pretended to the manager, but actually she was thinking about something else.
【单选题】She pretended ______ to the manager,but actually she was thinking about something else.
【单选题】She pretended TV when her mother came in.
【单选题】She pretended______when the teacher came into the classroom. [ ]
【单选题】 空间力偶矩是____________________________________。
【单选题】( )为花梗上端的膨大部分。其下面生的叶片称为副萼。花托常有凸起、扁平、凹陷等形状。
【判断题】导电性能介于导体和绝缘体之间的物体称为半导体
【单选题】She pretended _______when I came in.