拿法的操作中包含的动作有()
A.捏、提、揉
B.捏、提、抖
C.按、揉、抖
D.按、拨、捻
E.捏、抖、捻
参考答案:A
南宋时,指南针经阿拉伯人传达到()。
A.美洲
B.西亚
C.非洲
D.欧洲
An advantage of a dry chemical over a carbon dioxide fire extinguish is its().
A.greater range
B.effective on all types of fires
C.cleanliness
D.All of the above