A.It is based on the Federal government.
B.It is based on individual school.
C.It is based on respective states.
D.It is based on local communities.
第8题
精液检查,精子前向运动缓慢,应按世界卫生组织分类,定为
A.a级
B.b级
C.c级
D.d级
E.e级
第9题
精液检查,精子前向运动缓慢,应按世界卫生组织分类,定为
A.a级
B.b级
C.c级
D.d级
E.e级
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