research&development是什么意思

research&development是什么意思 industrial&engineering chemistry research是什么意思 develop develop develop amp &. research Research research with the kind of robot ___he will put much more energy into his research work.选项A to develop B developed C being develop D developing 补全下列句子(用动词ing形式)1.We can develop scientific research by?2.We can improve the rice crop yield by?3.The goverment can develop research by? 第十题,@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^~^^^^^^^~########## 좋아합니다 Mr.Right>" 정수연是什么意思 suggest parentheses around ‘&&’ within &；amp；amp；quot是什么意思