Inthe（）refrigerationcompressoroneendofthecrankshaftextendsthroughthecrankcasehouseforconnection,viaacouplingorpulley,toanexternaldrivemotor.
A: open-type
B: hermetic
C: semi-hermetic
D: alltheabove
A: open-type
B: hermetic
C: semi-hermetic
D: alltheabove
举一反三
- Some herbs have ( ) value. A: therapeutic B: heretic C: hermetic D: energetic
- We take great pleasure inthe door to this great step in your journey. A: opening B: opened C: opens D: open
- semi A: /ˈsemi/ B: /ˈsɛmaɪ/()
- AccordingtothepassagewecanseethatChinesepeoplethinkofthepigasa______animal. A: clever B: rich C: good D: alltheabove
- 中国大学MOOC: semi A. /ˈsemi/ B. /ˈsɛmaɪ/ ( )