—Do you have any problems if you ______ five minutes to read?—Well, I'm thinking about the new words. There are too many.
A:give
B:are given
C:will be given
D:gave
“蒸汽时代”和“电气时代”是人类工业文明进程中的里程碑,它们都( )
鸟类的结构与其飞行生活相适应的特征是 ( )①身体呈流线型,体表被覆羽毛②骨骼轻、薄,长骨中空③有坚硬的角质喙④羽毛颜色鲜艳⑤胸骨上有发达的肌肉⑥身体里有气囊
配制10%氯化钠溶液时,下列会引起溶液中溶质的质量分数偏小的是( )