Hello! I am Julia. My mom and I are from the U.S.A. . I am thirteen now. I’m in Class 6, Grade 7. Lingling is my friend. She is from Yunnan. Her QQ number is 52656523. We are in the same school. She is in Grade 7, too. But she is in Class 7. She is fourteen. My mom is Nancy. She is a teacher in my school. She has a nice car.

根据短文内容，选择正确答案。

(       )1. How old is Julia?

A. 13             B. 14                C. 15

(       )2. Lingling’s QQ number is        ?

A. 52656523         B. 52655633           C. 52655623

(        )3. Lingling is in        ?

A. Class 6, Grade 7.      B.Class 7,Grade 7.   C.Class 7, Grade 6.

(        )4. Where is Nancy from?

A. China            B. England            C. the U.S.A.

(        )5. Which is RIGHT(哪一项是正确的)?

A. Lingling is from the U.S.A.        B. Nancy has two cars.  

C. Julia, Lingling and Nancy are in the same school.

P₂₀₄洗钠液的浓度为（）N。

A、0.15

B、0.4

C、2.0

D、3.6