【简答题】pressure 2.pain 3.challenge Because of its long neck ,the giraffe ( 长颈鹿 )has the highest blood ______ ( 血压 ) of any animal.
【单选题】The ________ giraffe (长颈鹿) was so frightened by the attacking lion that it fell in the water and was drowned.
【简答题】三相交流电源是三个大小相等、频率 而相位互差120°的单相交流电源按一定方式的组合。
【单选题】及时排除液压系统中的空气可以排除因此原因引起滑枕 ( ) 故障。
【简答题】Ich treffe mich morgen meiner Freundin.