Hygroscopic water is an unavailable water for plants.

Dunnage may be used to protect a cargo from loss or damage by（）. A: ship's sweat B: inherent vice C: tainting D: hygroscopic absorptio

Warning signs must be printed on the transport package for（）. A: inflammable materials B: explosive materials C: oxidant D: hygroscopic articles E: fragile articles

根系主要吸收土壤中的（ ）水分。 A: 重力水（gravitational water） B: 毛孔水（capillary water） C: 吸湿水（hygroscopic water） D: 重力水和毛孔水

Which statement concerning sweat damage in containers is TRUE?（）. A: Sweat damage in containers is unusual due to the small enclosed volume of air B: In general，containerized hygroscopic cargoes are the only ones subject to sweat damage C: Containers should be ventilated，dehumidified，or the contents physically protected against sweat damage D: Sweat damage is not a problem except in insulated and refrigerated container