Decisionmakersmusthavesomewayofdeterminingofseveralalternativesisbest.（）
A、thatD
暫無解析
The fixed star was a planet.（）
The United States is a country_ (advance) in science and technology
Instudiorecordings,newtechniquesmadepossibleeffectsthatnotevenanelectronicbandcouldproduce.
Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
Do not let this __(say) of you. It shows an unattractive indifference to your employer and to your job.
