将两句合成一句:Several coutries have sent up spaceships.The spaceships mainly useelectronis controls..Several countries have sent up spaceships()mainly use electronic cintrols.

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/15 15:44:27
将两句合成一句:Severalcoutrieshavesentupspaceships.Thespaceshipsmainlyuseelectroniscontrols..Severalcountri

将两句合成一句:Several coutries have sent up spaceships.The spaceships mainly useelectronis controls..Several countries have sent up spaceships()mainly use electronic cintrols.
将两句合成一句:Several coutries have sent up spaceships.The spaceships mainly use
electronis controls..
Several countries have sent up spaceships()mainly use electronic cintrols.

将两句合成一句:Several coutries have sent up spaceships.The spaceships mainly useelectronis controls..Several countries have sent up spaceships()mainly use electronic cintrols.
which

Several countries have sent up spaceships (which) mainly use electronic cintrols.