【简答题】重力场中大气压强随高度h的变化规律为 当随着高度增加,大气压强p减至为地面压强p 0 的75%时,该处距离地面的高度h=____ __×10 3 m.(设空气的温度为0°C,普适气体常量R=8.31 J·mol -1 ·K -1 ,空气的摩尔质量为29×10 -3 kg/mol, 符号exp(a),即e a ) (填2个数字+小数点)
【单选题】若x 3 +x 10 =a 0 +a 1 (x+1)+…+a 9 (x+1) 9 +a 10 (x+1) 10 ,则a 2 =( )
【单选题】小儿,体重10kg,身长10cm,头围48cm,胸围48cm,其年(月)龄应该是
【单选题】The brilliance of his satires was ______ make even his victims laugh. A. so as to B. such as to C. so that D. such that
【单选题】下列哪种氨基酸可以直接进行氧化脱氨基作用
【单选题】能够引起疾病并决定该疾病特异性的因素称为