采购价格确定方式有（）。
A.报价采购方式
B.调查确定采购方式
C.招标确定方式
D.谈判确定方式
参考答案：A, C, D
根据图片提示完成下列句子。
1. —Where's your pen pal from?—He is from _______.
2. Does his aunt go to _______?
3. Where can you see the sightseeing in the picture?_______ in China.
4. If you visit _______, you can see Tian'an men Square.
5. Look at the flag, Which _______ is it? It is United States.
假如以一个星期为数据收集周期，在该周期内一个水情测报系统中心站应收到11000次报汛，但是实际只收到10900次成功报汛，那么表现该水情测报系统可靠性的报汛率是多少？
1. —Where's your pen pal from?—He is from _______. 
2. Does his aunt go to _______? 
3. Where can you see the sightseeing in the picture?_______ in China. 
4. If you visit _______, you can see Tian'an men Square. 
5. Look at the flag, Which _______ is it? It is United States.