问题
单项选择题
()平移,像顺动。
A、平光镜
B、正透镜
C、负透镜
D、太阳镜
答案
参考答案:C
()平移,像顺动。
A、平光镜
B、正透镜
C、负透镜
D、太阳镜
参考答案:C
选择句子完成对话。 | ||
Jim: Sorry, I don't have one. Please ask Ann. 2. Li Lei: OK. Thanks. Li Lei: Hi, Ann. 3. Ann: Sorry, I don't have one. Please ask the twins. I think they have. Li Lei: 4 Thank you. Li Lei: Lily, Lucy, and 5. Lily: Yes, I do. 6. Lucy: I have an English-Chinese dictionary. Li Lei: That's good. 7. Lucy: Yes, 8. Li Lei: Tomorrow? 9. Lucy: Oh, sorry! 10. |