氯碱工业制备的碱为（　　）

学会与父母沟通，掌握要领，你认为以下观点可取的是（    ）

①彼此了解，相互尊重             ②对一些观点要求同存异

③用换位思考的方法来理解      ④我们还小一切要听父母的，这才是好孩子

①取代 ②加成 ③消去 ④酯化 ⑤水解 ⑥氧化 ⑦中和

由图乙、图丙可以看出浮力的大小与____有关；由图中数据还可计算出物体的密度为____ ，盐水的密度为____ ．（取g=10N/kg）

从所给出的句子中选出合适的完成对话。(共5小题，每小题1分)

A. In the morning, I have a party withmy classmates.     B. How are you?

C. Do you go to the cinema onChildren's Day?      D. I love Children'sDay!

E. Happy Children's Day!

John: Good morning, Sue.

Sue: Good morning, John. ____

John: Fine, thanks. Today is June 1st. It's Children's Day.Happy Children's Day!

Sue: ____ What do you do on Children's Day?

John: ____ In the afternoon, I go to the museum with myparents. In the evening, I go to the cinema with my friends. ____

Sue: I love Children's Day too!

John: ____

Sue: Yes, I do. I go to the zoo too.