【单选题】The Germanic tribes came to England from the continent about the middle of the 5th century were the Angles, Saxons and ______.
【单选题】Why was the dragon selected to be the main symbol on the totem when the totem ceremony was held on the 5th of the 5th lunar month?
A.
Chinese people randomly choose the dragon to be the symbol.
B.
Because the Chinese consider the dragon to be sacred.
C.
Because the Chinese like the image of the dragon.
D.
Because the Chinese believe they are the sons of the dragon.
【单选题】配方中采用高筋面粉,比较适合制作下列何种产品?
【判断题】呼吸器每次使用后,应清洁消毒并补充氧气,为消除异味,可放在日光下晾晒。
【单选题】刀具对工件的同一表面,每一次切削称为()。
【单选题】配方中采用高筋粉,比较合适制作下列何种产品?( )