Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
to be done
暂无解析
I'dliketoremindyouthatthereisno_____onthepartofsuspectstoanswerquestions.
Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
Thepresentcrisisbearssome________(similar)totheoilerisisofthe1970s
Iwouldratheryou__(come)tomorrow.
TheUnitedStatesisacountry_(advance)inscienceandtechnology
