—_____ is that T-shirt?
—Thirty yuan. [ ]
A. What
B. How much
C. How
D. How many
答案:B
血液中含有各种成分,血液的成分含量最多的是[ ]
A.红细胞
B.白细胞
C.血小板
D.血浆
如何理解税收制度的含义?