China sent up Shenzhou VII manned spaceship into spaceship successfully, which shows that science and technology ______ rapidly in China.
A．has been developing B．developsC．developedD．has developed
A
表示過去發(fā)生，一直持續(xù)到現(xiàn)在的動作用現(xiàn)在完成進(jìn)行時(shí)。
【標(biāo)簽】動詞時(shí)態(tài)
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