The use of the chemical may present a certain hazard to the laboratory workers.（　）

题库:综合类 类型:最佳选择题 时间:2017-07-03 03:11:50 免费下载:《单项选择》Word试卷

The use of the chemical may present a certain hazard to the laboratory workers.（　）
A.protection
B.indication
C.immunity
D.danger

本题关键词:T管,t-PA,T形,T波,T株,头颅T,S-T段,RAEB-t症,T形管,T蛋白;