约翰·梅杰已攀上了英国政界的顶峰。John Major has reached the pinnacle of British politics.他们攀上了岩石.They clambered over the rocks.那些男人攀上一堵墙然后顺着另一侧的脚手架爬了下去。The men scaled a wall and climbed down scaffolding on the other side....
Reactions with various enzymes showed hemicellulase and pectinase had synergistic effect on improving extraction rate.不同的酶作用对核酸酶提取的影响显示:纤维酶、半纤维酶和果胶酶对麦芽根破壁具有协同作用.OBJECTIVE : To study the synergistic mechanism of Shuanghua...