【多选题】甾体母核的显色反应有
A.
醋酐-浓硫酸反应(Liebennann-Burchard反应),依次产生黄、红、蓝、紫、绿色
B.
索尔柯维斯基反应(Salkowski反应),氯仿-浓硫酸反应,氯仿层血红色,硫酸层绿色
C.
无水氯化锌和乙酰氯反应(Tschugaev反应),红-蓝-绿
D.
三氯醋酸-氯胺T反应(ChloramineT反应),不同苷显色不同
【简答题】A.She was exhausted from her trip. B.She missed the comforts of home. C.She was impressed by Mexican food. D.She will not go to Mexico again.
【单选题】Until she was 11 years old, Elizabeth Barrett Browning was confined to her home by her tyrannical father.
【简答题】A.She was hurt by the man. B.She lost her temper. C.She didn't speak to her husband. D.She missed the dinner party.
【单选题】Her parents died when she was very young, so she was ()by her aunt.
【简答题】有机负荷在设计时应根据去除率和出水水质的要求选取,若要获得较好的出水水质和较高的去除率,则选取较___的有机负荷率,若要获得较快的降解速度,而不需要获得较好的出水水质,则选取较___的有机负荷率。(大或小)
【判断题】B细胞表面只有一种BCR,没有其他受体蛋白
【单选题】在计算机网络的工作模式中,网络中计算机角色既是客户机又是服务器,及提供服务又使用服务,这种模式成为( )。
【简答题】请结合本专业和个人情况写一份简历并提交到批改网,作文号1400213.