正常生产中，如减压水封破坏时，应采取的措施有（）。 A.若虹吸有问题，迅速处理，保持

基本语法 。

1. When he was five, he_________(begin) to  read  and write．

2. If you ask him,he_______(help) you.

3. When water________(become) gas,we call it steam.

4. We________(have)a ball game if it is fine tomorrow.

5. As soon as water boils,it________(change) into vapour  little by litle.

孔雀开屏、青蛙的高昂鸣叫都是防御行为。

根据词首字母或汉语提示完成单词。

1. Have you been to that _____ (超级市场)?

2. Look!Some of the boys are swimming in the s _____ pool.

3. My sister has been to Tian'anmen S _____  twice.

4. Do you know where the C _____  Mao Memorial Hall?

5. There is an_____ (入口处) on the left.

纳税人、扣缴义务人不能按期办理纳税申报或者报送代扣代缴、代收代缴税款报告表的，( )。

A) 可以延期申报，但需先交纳税款保证金
B) 可以延期申报，但应补交延期的税款
C) 可以延期申报，但应补交延期的滞纳金
D) 可以延期申报，但应在核准的延期内办理税款结算

安徽省皖南山区适合种植茶树的主要区位因素是

A．光照

B．土壤

C．市场

D．政策