附加压头的产生条件为燃气、空气存在密度差及______

following outline. Topic: How to succeed in college Topic sentence: There are some things you can do to succeed in college. Three things to do: ? Pursue passions ? Seizing opportunities ? Taking responsibilities Concluding sentence: You will become successful not only in college, but also in your future career.

Unit 2 Loving parents, loving children

1、Why did the mom complained about the mess left by her daughter?

2、How is the relationship between the mom and her daughter in the text?

3、Why did the daughter buy a truck and leave home?

1、There was a ______ of bottles and tubes on the shelf.

2、He is such an ______ to his family.

3、Grandpa gets very ______ whenever he talks about the war in which he fought many years ago.

使用等价类划分法时以下家树中此名市部物人的成工外发院注意， 无需设计测试用例。

案例描述:有一个注册的程序，内含姓名输入框、年龄输入概

①姓名输入框:可以输入1-20个字符(不包含数字、不可为空)

②年龄输入框:可以输入18-60之间的整数(不可为空)

1200000元，销售单位税金为5元。

要求:(1)采用量本利分析法测算该企业的保本点销售量和销售

(2)若目标利润为,45000元时的销售量和销售额。