单项选择题 W：I am so lucky I don’t have the similar job as yours.Working all night and sleeping in the daytime.How terrible it is to be like this all the time.M：Oh，I stopped that when I got my promotion last month.Now I am on three days and off two.Q：What can we learn from the conversation？（）

单项选择题 下列细胞结构中容易被染色的是（）。

单项选择题 W: I am so excited just to think about it! This is my first trip to Paris. I want to visit all the interesting places there. But I am afraid that I can’t find my way around there.M: Don’t worry about that. Just give me a call when you have trouble. I’ll be glad to show you around. I am so familiar with these places.Q: What does the man offer to do for the woman?（）