地球上的0°经线与0°纬线相比( )
A.等长
B.稍长
C.稍短
D.相差约1倍
地球仪上0°纬线的长度是0°经线长度的2倍略多一点.
故选:D.
读一读,判断正误。正确的写“T”,错误的写“F”。
I'm Yingying. Today is my birthday. I'm ten years old now. Dad and mom give me birthday gifts: a doll and
a plane. My friend, Yangyang gives me a red balloon. And we eat a big cake at dinner. I like to eat hamburgers
and chicken, too. I'm happy and we are all happy.
( ) 1. Today is Yangyang's birthday.
( ) 2. Yingying is 10.
( ) 3. Dad and mom give her a red balloon.
( ) 4. Yingying likes to eat hot dogs.
( ) 5. They are happy today.
发酵车间管理人员为制服染菌应具备哪些素质?