【单选题】colour is the cover of the dictionary?
【单选题】I had not been invited to the party,so I felt______and a bit hurt.
【单选题】The moment I got home, I found I _____ my jacket on the playground. [ ]
【单选题】下列哪种误差不属于操作误差:
D.
操作人员对于颜色变化反应迟钝,造成反应结束时溶液颜色偏深
【单选题】Only when they came ___________.
B.
did I leave the office
D.
I did leave the office
【单选题】---Who left the window _______? --- Sorry. I forgot _______it when I left yesterday.
【简答题】26 ( ) 1 ___ the money, she bought a new coat ___ her father. A. With; for B. With; to C. For; with D. To; with ( ) 2 Wei Hua gets on well ___ her classmates. A. with B. in C. to D. at ( ) 3 There is ...
【单选题】下列哪种误差不属于操作误差()
B.
操作人员对于滴定终点指示剂变色反应迟钝,造成终点溶液颤色偏深