The mechanism by which preserved eggs form a gel belongs to ( ) gel. A: Thermal induction B: Ion induction C: Acid/alkali induction D: Enzyme induction

Which<br/>of the following descriptions is incorrect? ( ) A: Under<br/>the condition of usual diet, body mainly produces acid substances B: The<br/>salts of organic acid contained in vegetables and fruits are the main<br/>source of fix acid C: Ammonia<br/>produced by metabolism is alkali (base) D: The<br/>more protein one ingests, the more fix acid is produced E: Ketone<br/>body includes volatile component