阅读理解。

     I have two new friends in our class. They are American girls. Their names Lucy and Lily. They are twelve.

They are twins. I am Wei Hua. I am Chinese. I am twelve, too. We are in No.6 Middle School. We are in Class

Two, Grade One. Lucy is Number 5 in Row 5. I am Number 5 in Row 8. Lily is behind Lucy. We are good

friends.

1. How old is Lily?

A. She's 11

B. She's 12

C. She's 13

D. She's 14

2. What class are the twins in?

A. They are in Class I

B. They are in Class 4

C. They are in Class 3

D. They are in Class 2

3. Are they students or teachers?

A. Yes, they are.

B. No, they aren't.

C. They are students.

D. They're teachers.

菌体排列成长链，相连菌端呈竹节状的细菌是（）（P476-14）

A、猪链球菌

B、炭疽芽孢杆菌

C、牛分支杆菌

D、牛布鲁氏菌

E、鼠伤寒沙门氏菌