每生产1kWh的电能所消耗的热量是发电厂的热耗率。
参考答案:对
____ was in 1979____ I graduated from university.
A.That; that
B.It; that
C.That; when
D.It; when
因为激素能够调节生长发育,所以青少年应该经常服用一些激素制剂。[ ]