【单选题】The most successful treatment described in the passage was a serum prepared from ______.
A.
the blood of patients who have been stung
B.
poison extracted from bees
C.
crushed bodies of bees
D.
a placebo and a crushed-body extract
【简答题】血浆与血清(plasma and serum)
【简答题】某猪场12~??15日龄仔猪发生腹泻,排出灰白色糊状粪便,有腥臭味,发病率35%,死亡率5%。尸体外表苍白、脱水、消瘦。剖检见肠黏膜有卡他性炎症。粪便接种麦康凯培养基长出红色菌落。该病最可能是?? A.仔猪大肠杆菌病 B.仔猪沙门氏菌病 C.仔猪梭菌性肠炎 D.猪传染性胃肠炎 E.伪狂犬病 某猪场2日龄仔猪腹泻,排出含组织碎片的红褐色稀粪,病猪脱水,死亡。剖检可见空肠呈暗红色,肠腔充满含血液的稀粪...
【单选题】Serum response factor (SRF) is phosphorylated by
【单选题】函数的垂直渐近线处是否一定对应其一个无穷间断点
【单选题】Patient was allergic to pollen,eerological detection show that IgE is positive in the serum.Which component is not involved in this immune response?