A.手術(shù)剪刀 B.搪瓷類 C.微生物實驗室接種環(huán) D.耐高溫的金屬
A.30cmX30cmX35cm B.30cmX30cmX20cm C.30cmX30cmX50cm D.30cmX30cmX25cm
A.30%~40% B.40%~50% C.50%~60% D.60%~70%