The nature of the nutritional requirements for obligate parasites in nature is unknown.人们还不知道自然界中专性寄生菌的营养要求的本质.All the photosynthetic bacteria possess the capability in addition to various facultative aerobes and obligat...
An obligate anaerobe can survive only in the absence of oxygen.专性厌氧生物只能在无氧条件下生存.Anaplasma ovis is an arthropod - borne rickettsial obligate parasite of sheep and goat.绵羊无浆体病是绵羊和山羊红细胞内专性寄生的由节肢动物传播的立克氏体疾病.Paul Ehrlich sees...
正在长牙齿的婴儿喜欢咬硬物.Babies who are getting new teeth like something hard to bite on.这样有时能发现硬物或肿块,这是肿瘤的信号.This can sometimes reveal a hardening or lump that signals a tumor.您兜中的硬物能取出来让我看一下 吗 ?May I see the hard object in your p...
She walked off the plane in a miniskirt and tight top.她身穿迷你裙和紧身上衣走下了飞机。When did the miniskirt first come in?迷你裙什么时候开始流行的?How do you think it goes with a miniskirt?你觉得这配一件迷你裙 怎么样 ?...
Biolar shift registers are classified as unidirectional and bidirectional.双极型移位寄存器可分为单向和双向两种.With a power - on reset functions, namely, the DAC registers reset to all zeroes.带有上电复位功能, 即把DAC寄存器复位至全零.Nevertheless, partial ...