Because all types of energy can be expressed () the same units, joules, this conversion can be expressed quantitatively in simple models.
A.in
B.as
C.of
D.with
正确答案:in
Because all types of energy can be expressed () the same units, joules, this conversion can be expressed quantitatively in simple models.
A.in
B.as
C.of
D.with
正确答案:in