Tom is short _____ Thomas.[ ]
A. in
B. on
C. of
D. for
答案：D
食品公司“××雪饼”的包装袋内放入一小包干燥剂，袋面上写有说明．请仔细阅读，并回答下列问题．
这包干燥剂吸收水分的化学方程式为______，这种干燥的原理与浓硫酸的干燥原理有何不同？______．
“请勿食用”是因为干燥剂吸水后具有______性．
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call the local fire department
