题目
Oil filtering equipment shall ensure that any oily mixture discharged into the sea has an oil content _______.A. not exceeding 100 , (ppm)B. of 15 , (ppm)C. not exceeding 15 , (ppm)D. of 100 , (ppm)
Oil filtering equipment shall ensure that any oily mixture discharged into the sea has an oil content _______.
A. not exceeding $100 \, \text{ppm}$
B. of $15 \, \text{ppm}$
C. not exceeding $15 \, \text{ppm}$
D. of $100 \, \text{ppm}$
题目解答
答案
C. not exceeding $15 \, \text{ppm}$