【单选题】患者,男,21岁。7月28日初诊。主诉:头晕、低热2天。病史:患者从事户外工作,最近几天户外温度在35~37°C,工作时自觉中暑,出现头晕,恶心欲吐,低热(T 38.2°C),午后尤甚,身热不爽,全身倦怠,腹胀,四肢沉重乏力,苔黏腻,口中亦粘腻。该患者热型为
【简答题】Which department deals with cash management and investment?
【单选题】在参数方程 x=a+tcosθ y=b+tsinθ (t为参数)所表示的曲线上有B、C两点,它们对应的参数值分别为t 1 、t 2 ,则线段BC的中点M对应的参数值是( )
【单选题】我校图书馆的图书主要采用哪种分类法分类的
【多选题】Which of the following are true of investment properties?
A.
Investment property is held partly for its investment potential.
B.
Property leased to another entity under a finance lease can be an investment property.
C.
Investment property can be held for rentals and capital appreication.
D.
A building held by a parent and leased to a subsidiary
E.
Land held for short-term capital appreciation
【多选题】Which of the following are investment intermediaries?
【单选题】Which is the pair phrase for "foreign investment"?
【简答题】(1)选修4-4:坐标系与参数方程 在曲线 C 1 : x=1+cosθ y=sinθ (θ为参数)上求一点,使它到直线 C 2 : x=-2 2 + 1 2 t y=1- 1 2 t (t参数) 的距离最小,并求出该点坐标和最小距离. (2)选修4-5;不等式选讲 若ab>0,且A(a,0),B(0,b),C(-2,-2)三点共线,求ab的最小值.
【单选题】曲线方程x=1-t2,y=t-t2,它在t=1处的法线方程为()。
【简答题】在平面直角坐标系 xOy 中,直线 l 的参数方程为 ( t 为参数),它与曲线 C :( y -2) 2 - x 2 =1交于 A 、 B 两点. (1)求| AB |的长; (2)以 O 为极点, x 轴的正半轴为极轴建立极坐标系,设点 P 的极坐标为 ,求点 P 到线段 AB 中点 M 的距离.