我国共有_____个民族,其中人口最多的是______,______个少数民族,人口最多的少数民族是______。
56;汉族;55;壮族
根据括号内所给汉语写出单词的正确形式。
1.Lucy!This is my ( 爷爷).
2.I've got two ( 电子邮件)from my pen friend.
3.We ( 做)dumplings every week.
4.Are they your ( 祖父母)?
5.There are many ( 人)in the park.
6.There ( 有)a map of China on the wall.
7.Our class comes a new boy,but I don't know ( 他)now.
8.I ( 做)my homework at 8 o'clock in the evening.
9.My ( 家)has eight people.It's big.
10.Sara hasn't got any uncles ( 和)aunts.
初戴全口义齿检查全口义齿平稳度、下列哪种操作正确()
A.在口外检查上下颌义齿咬合的吻合情况
B.义齿戴入口内后、双食指分别放在两侧前磨牙区面、左右交替加压
C.将上下颌义齿分别放在平板上、左右交替加压检查
D.义齿戴入口内后、双食指分别放在前牙切缘及基托远中端交替加压
E.在口内检查上下义齿咬合的吻合情况