The composer of this piece of music was anonymous
A、die young
B、was unknown
C、used a pen name
D、wrote only for songs
A、die young
B、was unknown
C、used a pen name
D、wrote only for songs
A、A. the crimson hand
B、B. the cruel hand
C、C. fairy sign-manual
D、D. the bloody hand
A、Biotransformation is the detoxification of non-nutritive substances
B、Biotransformation mainly occurs in the liver.
C、Biotransformation is affected by age, gender and other factors.
D、The products of biotransformation tend to be more water-soluble.
A、biotin
B、SAM
C、FH4
D、FH2
E、folic acid
A、trial
B、endeavor
C、pain
D、labor
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