东风8B型柴油机的压缩比为12.5时，理论垫片厚度为（）。A、5.1mm B、5.3

Nancy is 1.45 meters tall, but she is over 140 pounds. She thinks she is too fat and she decides（决定）to get thinner（更瘦）. Here is her plan for it.

Food 1．Never eat any candy or chocolate. 2．Have only a glass of milk and an egg for breakfast every morning. 3．Eat more vegetables. 4．Eat meat only once in a week. 5．Just have an apple for supper.

Exercise 1．Walk to school every day. 2．Run for an hour every morning. 3．Swim in the gym twice a week. 4．Play tennis for half an hour after school every day.

根据短文内容，判断正（A）误（B）。（10分）
小题1:Nancy is an over-weight girl.
小题2:Nancy hopes to be thinner though（虽然）she is a little thin.
小题3:Nancy is going to eat more meat and more vegetables.
小题4:Nancy wants to eat no candy or chocolate.
小题5:This is a plan for study.