干绝热递减率
参考答案:
干空气块或未饱和的空气块在绝热条件下,每升高单位高度(通常取100米),所造成的温度下降数值,用rd表示。rd=0.98K/100m
About ____of the students in Grade Nine this year were born in the_____.
A.three five; 1996.
B.three fifths; 1990s
C.third fifth; 1997.
D.third fifths; 1990s
接近震颤麻痹病因治疗的药物是
A.安坦
B.安定
C.左旋多巴
D.新斯的明
E.利血平