服用脊髓灰质炎减毒活疫苗糖丸时的护理要点是()
A.接种前要做皮试
B.接种时用冷开水送服
C.接种后1小时内喝热水
D.发热时及时用大剂量退热药
E.2岁时加强复种1次
参考答案:B
The boy is _____ than his brother.
A. confident B. more confident C. as confident