The puzzle A-[was ] B-[so difficult] that I C-[gave up it] D-[in the end] .
查看答案
Tom’s father, A-[as well as ] his mother, B-[ask] him C-[to stay ] D-[in New York] for a few more days.
尿培养菌群计数含应视为感染
A. 105/ml
B. 104/ml
C. 104~105/ml
D. 106/ml
Robert is A-[a great] basketball B- [fan] and C-[love] Kobe D-[Bryant ] very much.
Hardly A -[I had ] sat down when I B-[heard] C-[someone ] knock at the D-[door] .