A.a’
B.a”
C.a
D.None
第1题
第2题
We must know such symbols ______ are used to represent the chemical elements.
A.that
B.what
C.which
D.as
第3题
A.
B.
C.
D.
第4题
The change from long to short hair isused to representthe woman's need for change in her life.
第5题
The abbreviation "GM" is used to represent the _____.
A.height of the metacenter
B.fighting arm
C.righting moment
D.metacentric height
第6题
According to the text, which of the following was not used to represent money in the past?
A.Salt B.A leaf
C.A piece of printedpaper D.A bit of metal
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