属于肿瘤特异性抗原的是()
A．胚胎抗原
B．甲胎蛋白
C．黑色素瘤抗原
D．痛胚抗原
E．CA199
参考答案：C
No conclusion _______ about the new product until the result of the experiment has been announced.
A．will be drawn
B．was drawn
C．has been drawn
D．is drawn
