下列哪条血管不属于阴部内动脉的分支
A.痔下动脉
B.阴蒂动脉
C.痔中动脉
D.会阴动脉
E.阴唇动脉
参考答案:C
水平放置的平行板电容器,两极板相距5mm,电容为2μF,当将其充电到两板电势差为100V时,一个质量为1.0×10-4g的带负电尘埃正好在板中间静止,(g取10m/s2)求:
(1)这时电容器的带电量为多少库仑?
(2)电容器上极板带何种电荷?
(3)该尘埃带电量为多少?
A ______ is a device that enables the computer to handle sounds.
A.network card
B.video card
C.sound card
D.monitor