初期掘进长度的确定不要考虑哪些因素（）。
A、盾构机和后方台车的长度
B、工作井口处布置岔道的需要
C、管片与土体间的摩擦力
D、照明的需要
参考答案：D
我是小法官，判断下面句子的正(√ )误 (×)。
( ) 1. My name is Wolf. I'm sheep's friend.
( ) 2. I am a tiger. I eat bananas.
( ) 3. An elephant lives in a hole.
( ) 4. Pleasant Sheep and Gray Wolf are good friends.
( ) 5. A kangaroo has humps.
( ) 6. An orange is orange.
( ) 7. Li Ming is hungry. He wants to drink beef.
( ) 8. Milk comes from cows.
( ) 9. A snake has four legs.
( ) 10. Chicken comes from chickens.
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