阅读短文，选择正确答案。
An old woman walked into a clothes shop. She asked the salesgirl to let her have a look at a new dress on
display, but the girl stood still behind the counter, taking no notice of the request. The old woman spoke to the
girl again, raising her voice a bit, but still received no answer. The old woman looked closely at the girl and
nodded to her, "I am too old to see well." I can't even tell a plastic (塑料的) model from a real girl."
On hearing this, the salesgirl shouted at the old woman," What? Did you call me a plastic model?"
The old woman was greatly surprised."Oh, dear me," she said. "The model can speak. Then it must be a
robot of a new type."
1. The old woman wanted ______ in the clothes shop. [ ]
A. to buy something
B. to play a joke on someone
C. to try things on
2. The assistant was a ______. [ ]
A. woman
B. model
C. robot
3. The assistant took no notice of the old woman because ______. [ ]
A. she was a plastic model
B. she was too old to see well
C. she was not a good assistant
4. The assistant began to speak because _______. [ ]
A. she got to know her mistake
B. she wanted to show that she was not a model
C. she thought the old woman had insulted (侮辱) her
5. When the assistant shouted at her, the old woman was greatly surprised because _______. [ ]
A. she had thought the assistant would speak
B. she didn't expect the assistant would speak
C. she had thought the assistant was a robot
（3）此游客进入BC段后水平滑行的距离。