育种
参考答案:
应用各种遗传学方法,改造动植物的遗传结构,以培育出高产优质的品种。
Please be quiet. We are not allowed _______ much noise in the reading room. [ ]
A. to make
B. make
C. making
D. to making
军队医院计量工作包括哪些内容?