A.感情承諾 B.繼續(xù)承諾 C.規(guī)范承諾 D.口頭承諾
A.細(xì)胞散在分布,失去極向B.細(xì)胞核長(zhǎng)梭形,核膜不規(guī)則C.胞核大小相仿D.細(xì)胞界限不清楚