—Was it in April, 1970China succeeded se
题型：选择题
问题：
—Was it in April, 1970 China succeeded sending its first satellite into space?
—Yes, that’s right.
A．when; in
B．that; on
C．which; on
D．that; in
题型：选择题
患者，男，9岁，面中份凹陷，面下1／3高度偏小，下颌前伸，前牙反
，可退至切。磨牙近中关系，ANB0°。上前牙略内倾。下前牙直立
对此患者诊断为（）
A.安氏Ⅱ类1分类
B.安氏Ⅱ类2分类
C.安氏Ⅲ类错
D.安氏Ⅰ类错
E.单纯的前牙深覆