∵81=9,
∴81的平方根是±9=±3.
∵-2的立方是-8,
∴-8的立方根是-2.
.More than one girl _____, as we expect.
A.has come
B.had come
C.came
D.have come
10岁男孩,体重40kg,因酮症酸中毒急诊入院,经抢救病情稳定,诊断为1型糖尿病。
该患儿每日所需热卡为()
A.1000~1200kcal
B.1400~1600kcal
C.1800~2000kcal
D.2200~2400kcal
E.2600~2800kcal