同一植物对不同元素的营养临界期是不同的。
参考答案:对
— Why did your team lose the game?
— They had a big advantage _____ us-_____ so much taller.[ ]
A. above; are
B. over; being
C. of; were
D. than; being
江苏电网220KV系统对于两线一变的变电所,当一线断开,另一线馈供变电所负荷时,继电保护的运行要求一般为:受电侧开关线路保护停用,线路两侧开关重合闸,送电侧开关()。