如图所示，光滑斜面的长为a，宽为b，倾角为θ，一个小物体从斜面上方左端顶点P水平射入，恰能从右下方端点Q离开斜面。试求其入射的初速度v0。
有关糖尿病的诊断正确的是（）
A.空腹血糖不一定升高
B.所有患者都需行糖耐量试验诊断
C.尿糖检查一定阳性
D.三多一少症状是诊断糖尿病必须具备的条件
E.第一次测定静脉血浆血糖值>10mmol／L即可诊断
An analyst does research about liquidity. Which of the following changes will least likely improve a company's liquidity position
A. Supplies increase credit terms.B. Bank line of credit limit decreases.C. Number of days of receivable decrease.
