临床上称Rh阴性，是指红细胞不含（）
A.d抗原
B.E抗原
C.D抗原
D.e抗原
E.C抗原
参考答案：C
京剧念白比较轻飘而歌唱则声音沉重，所以常用“四两念白千斤唱”来形容。
If the building project to be completed by the end of this month is delayed, the construction company will
be ________.[ ]
A．removed
B．paid
C．fined
D．admitted
