问题
判断题
由于各种原因所引起的故障报警时，报警指示灯亮。可进一步通过编程器查看报警信息。
答案
参考答案：对
搜题请搜索小程序“爱下问搜题”
由于各种原因所引起的故障报警时，报警指示灯亮。可进一步通过编程器查看报警信息。
参考答案：对
| 完形填空 | |||
| The world of out-of-doors is full of secrets. And they are so interesting that quite a lot of people are busy studying them. All around us are birds, animals, trees and flowers. The facts about how they 1 and grow are as interesting as anything could be. Do you know that one of the great Presidents of the USA spent hours and hours 2 birds? A businessman who lives near New York city became so 3 in insects that he began to collect them. He now has more than one thousand different kinds carefully 4 in glass boxes. Come then with me, and I will help you find some of nature's secrets. Let us go 5 through the woods and fields. Here we shall find now a rabbit tells the other rabbits that there is danger. We shall 6 a mother bear and her young ones as they look for 7 and get ready for winter sleep. We shall watch bees dancing in the air to let other bees know 8 they can find food. I will show you many other interesting things, but the thing that I can 9 you is to keep your eyes and ears 10 when you go out of doors. Nature tells her secrets only to people who look and listen carefully. | |||
| ( )1. A. bear ( )2. A. studying ( )3. A. friendly ( )4. A. locked ( )5. A. near ( )6. A. hear ( )7. A. food ( )8. A. how ( )9. A. make ( )10.A. closed | B. live B. eating B. carefully B. kept B. quickly B. follow B. fruit B. why B. pass B. open | C. speak C. learning C. busy C. put C. quietly C. catch C. vegetables C. where C. give C. safe | D. fly D. finding D. interested D. filled D. politely D. help D. water D. when D. teach D. clean |