原料液氨中水含量偏高将会导致（）等。
A、氨蒸发器排污量增大
B、催化剂中毒
C、催化剂积碳
D、氨耗偏高
参考答案：A, D
The factory produced a large amount of furniture last year, so far 65 percent of which _____ exported
to some European countries. [ ]
A. has been
B. are
C. was
D. were
希波克拉底在《论小、空气和地域》一书中，论述了（），等决定人的体质和民族的心理特性。
A.空气
B.地理环境
C.水
D.气候
