【单选题】以下说法哪一种是正确的( )
A.
电场中某点电场强度的方向,就是试验电荷在该点所受的电场力方向
B.
电场中某点电场强度的方向可由E=F/q0、确定,其中q0为试验电荷的电荷量,q0可正可负,F为试验电荷所受的电场力
C.
在以点电荷为中心的球面上,由该点电荷所产生的电场强度处处相同
【单选题】“伐柯伐柯,其则不远”中“柯”意思为( )。
【简答题】SECTION B ENGLISH TO CHINESE Directions: Translate the following text into Chinese. Second after the roof blew off the Koshak house, John yelled, 'Up the stairs—into our bedroom! Count the kids.' The ...
【简答题】Section A Directions: Listening to the following recorded questions and then choose the proper responses. Af t er each question, there is a pause. The questions will be read twice