对于有严重缺陷的新生儿，由谁作出生死决定最为合适?
C
暂无解析
Wooddoesnotconductelectricity;________.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Tosucceedinascientificresearchproject________.
f(x,y)=y根号1-x2+sf(x,y)dxdy其中D=（x,y），则
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.