题目：
根据短文内容，选出正确的答案。
Mr Liu went to Japan(日本) last year. He went there with his big family-his parents, his wife and his
son. Mr Liu's father was retired(退休的). His mother was a housekeeper(家庭主妇). His wife was a
Chinese teacher. She taught Chinese in Japan. The boy-Liu Xiaoming was a primary school(小学) student. He was good at Chinese, English and maths. But he couldn't speak Japanese well.
1. How many people are there in Mr Liu's family?
A. three
B. five
C. four
2. Was Mr Liu's father retired?
A. Yes, he was.
B. No, he wasn't.
C. sorry.
3. Mr Liu's wife is a _______.
A. Chinese teacher
B. English teacher
C. Japanese teacher
4. Liu Xiaoming was not good at _______. .
A. Japanese
B. Chinese
C. English
5. Mr Liu's mother is a ______.
A. teacher
B. worker
C. Housekeeper
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B解析：对特种设备实施市场准人制度和设备准用制度。市场准人制度主要是对从事特种设备的设计、制造、安装、修理、维护保养、改造的单位实施资格许可，并对部分产品出厂实施安全性能监督检验。对在用的...
