滑参数停机
参考答案：
就是在调速汽门全开的情况下，依靠蒸汽参数的逐渐滑降来减负荷。
用FDI提出的二位数字法记录的牙位24指的是（）
A.左下第一恒中切牙
B.右上第一恒前磨牙
C.左上第一恒前磨牙
D.左上第一乳磨牙
E.右上第一乳磨牙
Directions: Write a letter to your cousin, who is going to take the college entrance examination and feels stressed, giving her some suggestions. Write your letter with no less than 100 words. Do not sign your name at the end of the letter. Use“Li Ming”instead. Do not write the address.
