我国著作权法对其适用范围所采取的原则有（）。
A.国籍原则
B.互惠原则
C.地域原则
D.公开原则
E.区别原则
参考答案：A, B, C
请把下列句子翻译成汉语。
1. She's got a headache today.
_______________________________________
2. She's got a fever today.
3. You had a cold.
4. My brother had lots of watermelons yesterday.
离心泵出口压力升高时什么原因？
