单项选择题
Please give your answer.
A、They are oil cooled and are of the shell and tube type.
B、They are water cooled and are of the shell.
C、They are water cooled and are of the shell and tube type.
D、They are water cooled and are of the cell and tube type.
Please give your answer.
A、They are oil cooled and are of the shell and tube type.
B、They are water cooled and are of the shell.
C、They are water cooled and are of the shell and tube type.
D、They are water cooled and are of the cell and tube type.