在分馏操作过程中,物料平衡遵循()。
A、质量守恒定律
B、能量守恒定律
C、相平衡定律
参考答案:A
Jane won't join us for dinner tonight and .
A.neither won't Tom
B.Tom won't either
C.Tom will too
D.so will Tom
Can you offset the shortage()the sweepings?
A.by
B.for
C.with
D.against