水溶液加热产生沉淀的化合物是()
A.蛋白质
B.多糖
C.氨基酸
D.昆虫变态激素
E.甾醇
参考答案:A
急性颅脑损伤在何种情况下切忌腰穿()。
A.病情稳定之后
B.怀疑有蛛网膜下腔出血
C.怀疑有颅脑血肿
D.意识障碍尚未恢复
E.开放性颅脑损伤
Because of her sensitivity to universal patterns of human behavior, ()has brought the English novel, as an art of form, to its maturity.
A. Charlotte Bronte
B. Jane Austen
C. Emily Bronte
D. Henry Fielding