【单选题】— Why does she look so tired? — She ____homework all the morning and she still hasn't finished it. [ ]
【单选题】关于本周蛋白的叙述,错误的是
B.
pH值在5.0时,加热到40℃-60℃出现沉淀,继续加热到90℃-100℃,沉淀重新溶解
【多选题】以下关于线性组织结构模式的描述中,正确的有()
【判断题】一般不踩动加速踏板时,“加速踏板1电位计电压值”应为0.7V左右,“加速踏板2电位计电压值”为0.35V左右。
【单选题】关于本-周蛋白的叙述,错误的是
E.
浓度超过近曲小管重吸收的极限时,可自尿中排出
【单选题】--- The little girl dances so well. Where was she trained? -- She learns all by herself. She ______ goes to any training class.
【单选题】She was so angry at all ______ he was doing ______ she walked out without saying a word.
【单选题】关于本-周蛋白的叙述,错误的是
C.
加热至40~60℃凝固,温度升至90~100℃又溶解
E.
蛋白电泳法的本周蛋白含量较低时,需预先浓缩10~50倍