影响立式重力分离器分离效果的主要因素是分离器的()。
A.进口管直径
B.出口管直径
C.筒体直径
D.排污管直径
参考答案:C
She was so angry at he was doing she walked out without a word. [ ]
A.what; that
B.that; what
C.that; that
D.what; what
下列不利于钙吸收的因素有()
A.脂肪酸
B.植酸
C.充足的蛋白质
D.维生素D
E.草酸