初情期
参考答案:
是指母犬生长发育到一定的年龄首次出现发情或排卵的时期。
根据句意和首字母提示每空填一个单词,使句意完整。
1. J_________ 1st is New Year's Day.
2. How do you s_________ pen?
3. Are those your pencil s_________?
4. Tom has a great sports c_________.
5. I think this movie is very e_________.
6. We want a lot of v_________ and fruit.
7. The teacher has a q __________ to ask us.
8. "What's your f_________ name?""Mike."
9. Sam is sitting n_________ to the window.
10. We like ice cream for d_________.
并联电抗器一般接在超高压输电线的末端和地之间,起()作用。
A、提高功率因数
B、限压
C、抑制合闸涌流
D、无功补偿