卫生防疫包配备数量正确的是()
A.100座以内配1个
B.不得少于每80个座位配1个
C.不得少于每100个座位配1个
D.101座配1个
参考答案:A, C
______ is nonprogram text embedded in aprogram to explain its form and function to human readers.
A.Command
B.Compile
C.Comment
D.Statement
用氯氧化法处理含氰废水时,PH值在()最为有效。
A.7~7.5
B.7.5~8.0
C.8.0~8.5
D.8.5~9.0