According to the solubility of DF, DF can be divided into
A、water-soluble DF & fat-soluble DF
B、mono-DF & poly-DF
C、water-soluble DF and water-insoluble DF
D、acid-soluble DF and alkali-soluble DF
A、water-soluble DF & fat-soluble DF
B、mono-DF & poly-DF
C、water-soluble DF and water-insoluble DF
D、acid-soluble DF and alkali-soluble DF
According to this passage, a scientist would conceive of a "table" as being ______.
A.a solid motionless object
B.certain characteristic vibrations in "ether"
C.a form. fixed in space and time
D.a mass of atoms on motion
A.sol=dde23(f1,τ ,f2,[t0, tn],options)
B.sol=ddensd(f,τ1,τ2,f2,[t0,tn],options)
C.sol=ddesd(f,fτ ,f2,[t0,tn],options)
D.sol=bvp5c(@fun1,@fun2,sinit,options, 附加参数)
A.dol、re、mi、F.a、sol、la。
B.dol、re、mi、F.a、sol、la、si。
C.ut、re、mi、F.a、sol、la。
D.ut、re、mi、F.a、sol、la、si。
A、有律音阶:sol、la、do、re、mi、sol
B、徴调音阶:sol、la、do、re、mi、sol、la
C、吕音阶:do、re、mi、sol、la、do
D、琉球音阶:do、mi、fa、sol、si、do
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