滴定度是指()标准滴定液中含有溶质的质量。
A、1ml
B、l0ml
C、5ml
D、15ml
参考答案:A
If Tom had spent more time studying, he able to do well in the test now.
A.will be
B.would be
C.has been
D.would have been
母牛在分娩过程中体力消耗很大,因而分娩后的母牛应立即喂给足量的精饲料,以促进体力恢复和胎衣的排出。