The doctor ________the boy as soon as he was sent to the hospital.
“身体分为头胸腹,两对翅膀三对足,头上两根感觉须,里头是肉外是骨.”这段话可以用来描写下列动物中的( )
用丝绸摩擦过的玻璃棒带正电,这是因为摩擦后的玻璃棒( )