葡萄胎患者行第一次清宫前,应建立静脉通道并配血的原因()。
A.清宫中便于给药
B.防止清宫时大出血
C.清宫时需常规输血
D.清宫前使用止血药
E.清宫前常规输抗生素
参考答案:B
—Do you know _____ the CD yesterday?
—Sorry, I don't know. [ ]
A. how much he paid for
B. how much he will pay for
C. how much did he pay for
D. how much will he pay for
下面哪项是属于WHO口腔健康标准中的
A.牙列整齐B.牙齿洁白C.无牙龈萎缩D.牙龈颜色正常E.无缺失牙