问题
单项选择题 A1/A2型题
S-曲线的特点是（）
A.曲线开始平缓，中间陡峭，最后又趋平缓
B.曲线开始平缓，中间平缓，最后陡峭
C.曲线开始陡峭，中间平缓，最后仍平缓
D.曲线开始陡峭，中间陡峭，最后平缓
E.曲线始终比较平缓
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
S-曲线的特点是（）
A.曲线开始平缓，中间陡峭，最后又趋平缓
B.曲线开始平缓，中间平缓，最后陡峭
C.曲线开始陡峭，中间平缓，最后仍平缓
D.曲线开始陡峭，中间陡峭，最后平缓
E.曲线始终比较平缓
参考答案：A
| 根据对话内容，从下面方框所给的选项中选出合适的句子补全对话。 | |
| Peter: Hi, Sally. Come and have a look at my photos. Sally: Are these the photos you took in Africa, Peter? Peter: 1_____ Look, this is a wildebeest. It's an animal in Africa. Sally: 2_____ Peter: No, it doesn't. It only eats grass. Sally: Are there a lot of animals in Africa? Peter: 3_____ Sally: Oh, this photo looks interesting. What are you doing there? Peter: 4_____ Sally: Did you have a good time there? Peter: Of course. 5_____ | |
|