Daniel thinks it would be_________ to reveal one's bias too readily.
A.wrong
B.improper
C.natural
D.justifiable

单项选择题'Yucca' (in the second paragraph) is most probably ______.A.a paintB.a brush used in paintingC.an object with a pointed endD.a plant

多项选择题原料指数大于1的工业包括（ ）。 A、钢铁业 B、水泥业 C、啤酒酿造业 D、石化工业