防止义齿下沉对游离龈组织造成压迫,舌杆距离龈缘的位置最低为()
A.5~8mm以上
B.8mm以上
C.1~2mm
D.3~4mm
E.4~5mm
参考答案:D
—______ your brother ______carrots?
—No, he likes tomatoes. [ ]
A. Do; like
B. Are; likes
C. Does; likes
D. Does; like
①将垃圾分类处理 ②禁止尾气排放不达标的机动车上路
③提倡使用一次性筷子 ④大力提倡植树造林.
A.①②③
B.①②④
C.①③④
D.②③④