Agoodworkerinakeyspotcould,hekeptupproduction,takeallthecoffeebreakshewanted,andthebosseswouldverylikelylooktheotherway.
Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
我国货币流通的中心是()
Goodparentshavetheabilitytocommunicatemessagesoflove,trust,andself-worth______theirchildren
生产力是生产过程中人与()
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