物理学上,把物体在热传递过程中______叫热量,用符号_____ 表示,国际单位是______ 。
传递能量的多少;Q;K
Further reading made me realize that it was hard work and determination as well as her good nature _____ had got her into medical school.
A.when
B.which
C.how
D.that
突变量构成的保护,不仅可构成快速主保护,也可构成阶段式后备保护