在静电场中下面正确的表达式是A. oint_(Gamma) E cdot dl = qB. oint_(S) E cdot dl ==(1)/(varepsilon_0) int_(V) rho , dvC. nabla cdot E = (1)/(varepsilon_0) int_(V) rho , dvD. nabla times E = 0

A. $\oint_{\Gamma} E \cdot dl = q$

B. $\oint_{S} E \cdot dl ==\frac{1}{\varepsilon_0} \int_{V} \rho \, dv$

C. $\nabla \cdot E = \frac{1}{\varepsilon_0} \int_{V} \rho \, dv$

D. $\nabla \times E = 0$