问题
选择题
—Look at the people in the lake. They are playing happily. Let's____, too.
—Good idea. [ ]
A. go hiking
B. go camping
C. go skiing
D. go boating
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Look at the people in the lake. They are playing happily. Let's____, too.
—Good idea. [ ]
A. go hiking
B. go camping
C. go skiing
D. go boating
答案：D
缺失，
为基牙，且牙冠外形好，无倾斜松动。可摘局部义齿修复时，