题干
—She only got home a short while ago．
—But we were not ready for that at that time．
A：a moment ago
B：right now
C：at once
答案(点此获取答案解析）
A
—She only got home a short while ago．
—But we were not ready for that at that time．
A：a moment ago
B：right now
C：at once
的蔗糖溶液里处理，一段时间后外表皮细胞中的水分不再减少。此时甲、乙两组细胞水分渗出量的大小，以及水分运出细胞的方式是
