纯铁的熔点为1538度,则其再结晶温度为(),而其再结晶退火温度为()。
参考答案:997度;1097度
--It’s said that Mr. Wang ______ into a new apartment last Sunday.
--Right. I went to his help.
A.moved
B.had moved
C.is moving
D.has moved
男性,38岁。4年前反复多次输血,近半年主诉乏力、低热、口腔及黏膜皮肤溃疡、平日易感冒,考虑为输血传播性疾病。首先要想到的是()。
A.艾滋病
B.肝炎
C.疟疾
D.梅毒
E.巨细胞病毒感染