局麻药中加入1:200000肾上腺素是指20ml药液中加入肾上腺素()
A.0.1mg
B.0.2mg
C.0.3mg
D.0.4mg
E.0.01mg
参考答案:A
He is the only one of the students __________ want to accept the teacher's advice.[ ]
A. that don't
B. who don't
C who doesn't
D. that do
职业健康安全管理体系文件应以适合于( )的形式予以建立与保持。
A.经济发展 B.企业规模C.企业实际特点 D.自身管理