下列归纳的恒牙列外形正确的是()。
A.尖圆形
B.方圆形和尖圆形
C.尖圆形和椭圆形
D.方圆形和椭圆形
E.方圆形、尖圆形和椭圆形
参考答案:E
计算。
(1)3.024÷0.36÷2.4
(2)13.6-13.6÷4
(3)310÷5÷0.4
(4)4.7÷(23.5-14.1)
(5)(31.6-7.4)÷2.2
(6)42÷5÷0.16
A lot of famous doctors gathered in Harbin _________ save “ China’s most beautiful teacher” -Ms Zhang Lili. [ ]
A. so that
B. in order to
C. in order that
D. as a result