A:λ=4,μ=2
B:λ=83,μ=32
C:λ=2,μ=43
D:λ=32,μ=43
- What do you think of the dish I cooked for you?
- I haven't had it yet. However, it good.
从2010年春季以来,云南省连续四年大旱,造成某些地区植物干旱死亡.这一现象说明()