不是胆红素组成物质的是
A.细胞色素B.肌钙蛋白C.血红素D.肌红蛋白E.过氧化物酶
参考答案:B
在下列各数:﹣(﹣2),﹣(﹣22),﹣|﹣2|,(﹣2)2,﹣(﹣2)2中,负数的个数为[ ]
A.1个
B.2个
C.3个
D.4个
I climbed the stairs slowly with a big suitcase, my father with two more.
A.followed
B.was following
C.following
D.having following