超数排卵
参考答案:
在母羊发情周期的适当时间,注射促性腺激素,使卵巢比正常情况下有较多的卵泡发育并排卵。
Be quiet! Our teacher has _____ to tell us. [ ]
A. anything important
B. important anything
C. something important
D. important something
石料的饱水率较吸水率(),而两者的计算方法()。
A.大,相似
B.小,相似
C.大,不同
D.小,不同