beijing venezuela close ally china say monday history show external interference unilateral sanction make things complex help resolve problems unite state impose new sanction venezuela u.s. president donald trump sign executive order prohibit deal new debt venezuelan government state oil company friday effort halt finance white house say fuel president nicolas maduro dictatorship maduro frequently blame unite state wag economic war venezuela say unite state seek force venezuela default say would succeed ask new u.s. measure chinese foreign ministry spokeswoman hua chunying say china position consistently respect sovereignty independence countries interfere internal affairs present problem venezuela resolve venezuelan government people tell daily news brief experience history show outside interference unilateral sanction make situation even complicate help resolve actual problem hua add china oil-rich venezuela close diplomatic business relationship especially energy month china say believe vote venezuela constituent assembly election generally hold smoothly brush widespread condemnation unite state europe others evidence vote irregularities china say sanction wo n't help trump target venezuela