下面不属于结构杆件的基本受力形式的是()。
A.失稳
B.压缩
C.剪切
D.扭转
参考答案:A
森林覆盖率高的地域往往降雨较多,其主要原因是植物的( )
A.呼吸作用较强,产生的水分多
B.蒸腾作用使大气湿度增加
C.光合作用较弱,利用的水分少
D.根吸水较少,消耗的水分少
A company has a cash conversion cycle of 70 days. If the company' s payables turnover decreases from 11 to 10 and days of sales outstanding increase by 5, the company's cash conversion cycle will :()
A. decrease by approximately 8 days.
B. decrease by approximately 3 days.
C. increase by approximately 2 days.