【单选题】M: I really enjoyed the TV special about animals last night. Did you get home in time to see it? W: Oh, yes, but I wish I could stayed awake long enough to see the whole thing. (问题):what does t...
A.
She was looking forward to seeing the animals.
B.
She enjoyed watching the animal performance.
C.
She got home too late to see the TV special.
D.
She fell asleep in the middle of the TV program
【多选题】分光光度计使用注意事项是
A.
使用光电池作为检测器的仪器连续使用不应超过2h, 每次使用后需要间歇30min 以上
B.
每台仪器所配备的比色皿其透射比是经过配对的,必须配套使用。不能与其他仪器上的比色皿单个调换,否则影响样品测试精度
C.
测定过程中,不得用手触摸比色皿透光面。其透光面的清洁不可用滤纸、纱布或毛刷擦拭,只能用镜头纸擦拭
D.
分光光度计的吸光值在0.2-0.7(透光率在20%-60%)准确度最高,低于0.1 或超1.0 时误差较大。如未知样品的读数不在此范围时,应将样品做适当稀释。
【单选题】Amy: Wow, her hair is beautiful! She has such long, loose curls. I wish my hair were ______ like hers.
【简答题】I'm lying with my head on the phone Thinking of you till it hurts I know you hurt too But can we do Tormented and torn apart I wish I could carry your in my heart For times when my life seems so low P...