题目

 He ______ in his garden every morning next year.  A. will work B. works C. worked D. is working 答案：A新鲜蔬菜放在冰箱的冷藏室中能适当延长保存时间的原因是A.呼吸作用减弱B.呼吸作用加强C.光合作用减弱D.促进了物质的分解