— How many apples did you pick when you were on the farm?
— I picked _______ apples than any other student in my class.
A:many more
B:much more
C:the most
D:the most of all
下列哪个国家被称作为“骑在羊背上的国家”和“坐在矿车上的国家”( )
如图所示,框架面积为S,框架平面与磁感应强度为B的匀强磁场方向垂直,则穿过平面的磁通量为____.若使框架绕OO′转过60°角,则穿过框架平面的磁通量为____.
能分泌促性腺激素的部位是