What time is it now?[ ]
A. It's 7: 00.
B. It's July first.
C. It is on Friday.
答案:A
铸造车间浇铸合金工件,已知所用木模质量为500g,木料密度为0.7×103kg/m3.今称得每个合金工件的质量为4.9kg,则该合金的密度是多少?
治疗中可用碱性溶液冲洗 * * 的是()
A.外阴炎
B.滴虫性 * * 炎
C.念珠菌性 * * 炎
D.前庭大腺炎
E.慢性宫颈炎