【单选题】导体壳内有点电荷q ,壳外有点电荷Q ,导体壳不接地。当 Q 的电量改变时,下列关于导体内(导体实心部分)任一点的电势、任两点间的电势差的说法中正确的是[ ]
【单选题】The reason _________ I am writing this letter is to tell you about the meeting on Saturday.
【简答题】如下图 是等腰直角三角形, , , ,延长 交 于 ,连接 ,求证:
【简答题】返回值为void的方法,可否有return?
【单选题】下列叙述不正确的是( )
B.
MsgBox()函数返回值为所单击按钮的键值
【判断题】线性系统稳定,其闭环极点均应在s平面的左半平面。
【简答题】The reason was _______ you don’t trust her. 2.The fact is _____they are angry with each other. 3.He was ill. That’s_____he was sent to the hospital. 4.He was sent to the hospital. That’s__________ he ...
【判断题】对科研不端行为的调查处理,要坚持公正、公平、保密、无害和平衡等原则,力求事实清楚、证据确凿、定性准确、处理恰当、手续完备、程序合法,使相关主体的合法权益受到保护。( )