The Whites ________ many places of interest since they came to China.
A:have visited
B:will visit
C:visited
They are traveling Shandong Province.
如图所示为一个紫砂壶,它工艺考究,做工精细.在壶盖上开有一个小孔,其作用是在倒水时内外的____ 相等.由于壶身和壶嘴构成____ ,为方便装水和倒水因而要求它们的高度相平.
如图,AB∥CD,∠CDE=119°,GF交∠DEB的平分线EF于点F,∠AGF=130°,则∠F=____ .