单选题
How much is the camera?
- 1500yuan
单选题
Can Henry get a discount?
- NO
单选题
When will the promotion be?
- Maybe next month
单选题
How can Henry get the information of the promotion?
- The salesclerk will contact him
单选题
单选题
下列无穷限积分收敛的是（ ）．
判断题
- 对
- 错
判断题
- 对
- 错
判断题
- 对
- 错
判断题
- 对
- 错