分子筛吸附二氧化碳的过程属于（）。
A.化合过程
B.化学过程
C.物理过程
D.以上都不对
参考答案：C
It's said the police have started an investigation,________are being kept secret . [ ]
A. of which details
B. and the details of which
C. the details of it
D. the details of which
—Danny likes Haiku.
—_____. [ ]
A. So Brain does
B. So Brain likes
C. So does Brain
D. So does Brain like
