离心泵的轴承箱用30#机油或40#机油代用；蒸汽往复泵汽缸用（）油。
参考答案：24#汽缸
Oh, there are so _____ beautiful flowers and so _____ money on the desk. [ ]
A. many; much
B. much; many
C. many; many
D. much; much
政府机构派出的组织并不一定是派出机构。 ( )
