A:都可以从低浓度到高浓度一边
B:都需要供给ATP
C:都需要载体协助
D:既需要载体协助又需要消耗能量
—Tell me something about your adventure in the rainforest, please.
— We lost our way in the forest and ___ made matters worse was ___ night began to fall.
_______ do you usually deal _______ your old clothes?
学校组织春季运动会,小明向班主任请假:我没有比赛项目,就不参加运动会了。
此观点正确吗?说明理由。