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【单选题】
“It’s said that your journey was very pleasant.” The sentence means that _____.
A.
y our journey is said to be very pleasant
B.
y our journey was said to be very pleasant
C.
y our journey is said to have been very pleasant
D.
y our journey was said to being very pleasant
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参考答案：
举一反三
【单选题】磨牙类牙齿的功能是( )
A.
切割
B.
切断
C.
捣碎
D.
刺穿和撕裂
E.
磨细
查看完整题目与答案
【单选题】For a particular engine power the two-stroke engine will be considerably lighter._____the complicated valve operating mechanism of the four–stroke.
A.
Nor the two-stroke engine requires
B.
Nor does the two-stroke engine require
C.
Nor the two-stroke ensine require
D.
Nor do the two-stroke engine require
查看完整题目与答案
【单选题】For a particular engine power the two-stroke engine will be considerably lighter. ______ the complicated valve operating mechanism of the four-stroke.
A.
Nor the two-stroke engine requires
B.
nor does the two-stroke engine require
C.
nor the two-stroke engine require
D.
nor do the two-stroke engine require
查看完整题目与答案
【单选题】聚碳酸酯的合成反应是
A.
加聚反应
B.
缩聚反应
C.
自由基聚合
D.
连锁聚合
查看完整题目与答案
【单选题】咀嚼效率与牙齿关系最为密切的是
A.
牙齿大小
B.
牙齿数目
C.
牙齿形态
D.
牙齿的功能性接触面积
E.
牙齿排列
查看完整题目与答案
【简答题】牙齿的功能是 。牙齿还能协助 。
查看完整题目与答案
【单选题】咀嚼效率与牙齿关系最为密切的是
A.
牙齿数目
B.
牙齿排列
C.
牙齿形态
D.
牙齿大小
E.
牙齿的功能性接触面积
查看完整题目与答案
【判断题】牙齿的功能是咀嚼、磨碎食物。乳牙虽坚硬 ,仍易生 龋齿。
A.
正确
B.
错误
查看完整题目与答案
【单选题】治疗乳牙的目的
A.
尽可能保持牙齿的功能，避免过早拔牙
B.
尽可能维持牙髓生活
C.
尽可能促进根尖的形成
D.
尽可能防止乳牙过早自行脱落替换
E.
以上均是
查看完整题目与答案
【单选题】影响咀嚼效率的因素是
A.
牙齿的功能性接触面积
B.
牙齿支持组织
C.
颞下颌关节疾患
D.
口腔内软硬组织的缺损
E.
以上均是
查看完整题目与答案
相关题目：
【单选题】磨牙类牙齿的功能是( )
A.
切割
B.
切断
C.
捣碎
D.
刺穿和撕裂
E.
磨细
查看完整题目与答案
【单选题】For a particular engine power the two-stroke engine will be considerably lighter._____the complicated valve operating mechanism of the four–stroke.
A.
Nor the two-stroke engine requires
B.
Nor does the two-stroke engine require
C.
Nor the two-stroke ensine require
D.
Nor do the two-stroke engine require
查看完整题目与答案
【单选题】For a particular engine power the two-stroke engine will be considerably lighter. ______ the complicated valve operating mechanism of the four-stroke.
A.
Nor the two-stroke engine requires
B.
nor does the two-stroke engine require
C.
nor the two-stroke engine require
D.
nor do the two-stroke engine require
查看完整题目与答案
【单选题】聚碳酸酯的合成反应是
A.
加聚反应
B.
缩聚反应
C.
自由基聚合
D.
连锁聚合
查看完整题目与答案
【单选题】咀嚼效率与牙齿关系最为密切的是
A.
牙齿大小
B.
牙齿数目
C.
牙齿形态
D.
牙齿的功能性接触面积
E.
牙齿排列
查看完整题目与答案
【简答题】牙齿的功能是 。牙齿还能协助 。
查看完整题目与答案
【单选题】咀嚼效率与牙齿关系最为密切的是
A.
牙齿数目
B.
牙齿排列
C.
牙齿形态
D.
牙齿大小
E.
牙齿的功能性接触面积
查看完整题目与答案
【判断题】牙齿的功能是咀嚼、磨碎食物。乳牙虽坚硬 ,仍易生 龋齿。
A.
正确
B.
错误
查看完整题目与答案
【单选题】治疗乳牙的目的
A.
尽可能保持牙齿的功能，避免过早拔牙
B.
尽可能维持牙髓生活
C.
尽可能促进根尖的形成
D.
尽可能防止乳牙过早自行脱落替换
E.
以上均是
查看完整题目与答案
【单选题】影响咀嚼效率的因素是
A.
牙齿的功能性接触面积
B.
牙齿支持组织
C.
颞下颌关节疾患
D.
口腔内软硬组织的缺损
E.
以上均是
查看完整题目与答案
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