About the liver, which of the following descriptions are correct?
选项：

A:It is the largest gland in the body.
B:Its main function is to secrete the bile (胆汁) to promote the digestion and absorption of fat.
C:Its large portion lies in the right hypochondriac region (右季肋区)and epigastric region (腹上部).
D:The visceral surface can be divided into right lobe, left lobe, quadrate lobe (方叶) and caudate lob
E:The structures The diaphragmatic surface has "H" groove.