核质被核膜包裹.The nucleoplasm is surrounded by the nuclear envelope.第1时相, 卵原细胞细胞质较少,核质比较大.In the first phase, the oogonium has little cytoplasm and bigger nuclear - cytoplasmic ratio.在紧缩期间,核质中的物质可以分为异染色质和常染色质.At this phase con...
Depression can be traced to holding in anger.抑郁症可以追溯到对愤怒情绪的压抑。Lovelock'sprincipled nonconformity can be traced to his childhood.洛夫洛克自成一套的特立独行可以追溯到他的童年时期。These quotations cannot readily be traced to their sources.这些引...