在贮罐的化工设备图中，表示贮罐人孔与基准之间的距离的是（）尺寸。
A、特性
B、装配
C、安装
D、总体
参考答案：B
I’m definitely going to settle in the countryside when I retire. All the words have a similar meaning with the underlined word, Except ______.
A．surely
B．actually
C．certainly
D．absolutely
汽机气动抽汽逆止门有哪些？
