合同的订立
黄酮类化合物因分子中具有（）而显酸性。
You are analyzing how Oracle processes user statements. SQL and PL/SQL parse information is stored in which of the following database memory areas? （） ["Library cache ","Row cache","Dictionary cache ","Large area ","Buffer cache"]
车的报警指示装置有（） ["ABS灯","AIRBAG灯","CHECK灯","远光指示灯"]
按全部成本法确定的产品总成本与单位成本要比变动成本法的相应数值（） ["低","高","相等","不一定"]
合同的效力
