JavaScript能编写服务器端脚本,而且必须放在标记之间,嵌入到HTML页面中。
参考答案:错
词汇考查。
1. Would you (介意) my opening the door?
2. We must be p if we ask others questions.
3. She works in a restaurant, and she is a w .
4. When this h________, I will get angry.
5. I really can't work out the math problem. Can you find out a s ?
6. When you are waiting for a bus, you should wait in l________.
7. He is always ready to help people in t________.
8. "Etiquette" means normal and polite b .
9. Please give me some s about learning English.
10. Young kids are not a to smoke in our country.
现有弹簧、钩码、直尺、指针等器材,小华要自制一个弹簧测力计,他首先测出弹簧的长度l0=2.10cm,然后在弹簧的下端挂上不同的钩码,测出弹簧的长度l,算出比原长l0伸长的量Δl(Δl=l-l0),测量的数据如下表:
(1)从上表中的数据可以看出拉力F和弹簧伸长Δl的关系是:______________________;
(2)小华继续做实验.得到的数据如下:
从上表的数据可以看出,拉力达到_________N时,拉力和弹簧伸长的关系就改变了。因此,弹簧测力计的范围只能达到___________N。