水稻返青后分蘖开始发生,直到开始拔节时分蘖停止,一部分分蘖具有一定量的根系,以后能抽穗结实,称为();一部分出生较迟的分蘖以后不能抽穗结实或渐渐死亡,这部分分蘖称为()。
银行营业场所发生突发事件应实行严格的(),违反规定,造成严重后果的要依法惩处相关责任人。 ["报告制度","保密制度","宣传制度","反馈制度"]
除工作电压不超过()及具有单点接地要求的电缆外,其他电缆的金属护套均应于两端可靠接地。
When two oil separators are working in series, they should work with () ["both as clarifiers","first one as clarifiers, second one as purifier","both as purifiers","first one as purifier, second one as clarifier"]
()期是指稻穗从顶端茎鞘里抽出到开花齐穗这段时间,一般5-7天。
继电保护的操作应注意哪些事项?