自熔烧结矿液相主要成份是()。
A.硅酸钙体系
B.铁橄榄石体系
C.铁酸钙体系
参考答案:B
连词成句。
1. teacher's is this office the (.)
2. lunch school at you have do (?)
3. for it's school time (.)
4. my is where dress (?)
5. so it's beautiful (.)
移植术后不发生排斥反应的是
A.同质移植B.同种异质体移植C.活体移植D.异种移植E.细胞移植