5 颗豆豆
1. 单选题
20 秒
How big is the bear cub (幼兽)at birth?
The size of a penny
The size of a stick of butter.
The size of a desk.
The size of a truck.
2. 单选题
20 秒
_haveone horn while others have two.
African elephant
bison (美/欧洲野牛)
rhinoceros (犀牛)
all of the above
3. 单选题
20 秒
The diet of a frog consistsmainly of
grass
mud
fruit
insects
4. 单选题
20 秒
Snakes and crocodiles arereptiles (爬行动物)
are green
have long tails
have lungs and scales (鳞)
can swim
5. 单选题
20 秒
Mammals (哺乳动物)breathe with
lungs
gills (鳃)
wings
eggs