题目内容

选择可摘局部义齿基牙的原则中，哪条不正确

A. 虽有牙周疾病，但已得到控制
B. 虽有牙体疾病，但已经治疗
C. 选择健康牙作基牙
D. 越近缺隙的牙作基牙固位，支持效果越好
E. 选用多个基牙时，彼此越平行越好

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Which of the following best expresses the main idea

A growing number of Americans are doubtful about what high technology can do in solving the world's problems.
B. Many scientists are beginning to believe that the better understanding of human beings will play a more decisive role in solving the world's problems.
C. More and more young scientists are trying their best to find new ways to solve the world's problems.
D. Technological creativity will still play a very important part in solving the world's problems.

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