【单选题】图中滤镜比较特殊,是智能滤镜,正确的使用方法是?
【单选题】—Excuse me. Where is Mr. Green's office? —It's on _____ floor. [ ]
【单选题】随机误差的有界性是指在一定的测量条件下,误差的绝对值,( )。
【单选题】—Excuse me. Where is Mr Green’s office? —It’s on ______ floor.
【单选题】There are some students ______ to have known what they don’t really know, which is really harmful to them.
【单选题】I really don't know ______ or to leave.
【单选题】听力原文:Excuse me.Where is the English Department? (2)