下列( )是不合法的指令。
A．MUL BX
B．MUL [BX]
C．MOV AL,02H
D．MOV AL,[BX]
参考答案：B
--- What were you doing this time yesterday?
--- I ______ on the grass and drawing a picture.
A．sit
B．sat
C．am sitting
D．was sitting
铸造金属全冠面应均匀磨除
A．0.3～0.5mmB．0.5～1.0mmC．1.0～1.2mmD．1.2～1.5mmE．1.5～2.0mm
