Unless the manufacturer's instructions tell you differently, do the procedure that follows. 除非制造商的说明书有不同的说明，否则按照下面的步骤操作。
A.Obey the following procedure if the manufacturer provides you different instructions. B.If the manufacturer instructs you differently the following procedure should be ignored. C.If the manufacturer's instructions are different from the following procedure, obey the following procedure正确答案B
