精子活力
参考答案：指精子运动的能力。
The explanation given by the manager yesterday was not at all ________ to us.
A．satisfy
B．satisfied
C．satisfactory
D．satisfying
下列哪种乳腺癌分化最好
A．浸润性小叶癌B．浸润性导管癌C．髓样癌D．小管癌
