问题
单项选择题
离子色谱法测定可吸附有机卤素时,当取样体积为50~200mI时,可测定水中可吸附有机溴(AOBr)的浓度范围为()μg/L。
A.1~1000
B.5~1200
C.9~1200
答案
参考答案:C
离子色谱法测定可吸附有机卤素时,当取样体积为50~200mI时,可测定水中可吸附有机溴(AOBr)的浓度范围为()μg/L。
A.1~1000
B.5~1200
C.9~1200
参考答案:C
It was such an __________ performance that it ___________ all the audience.
A. astonished, astonishing B. astonished, astonished C. astonishing, astonishing D. astonishing, astonished |