某种商品的进价为800 元，出售时标价为1500 元，后来由于该项商品积压，商品准备打折出售，但要保持利润率为5% ，则应打多少折？
解：应打8 折
同义句转换。
1. He paid 6 yuan for a bowl of beef potato noodles.
He _________ 6 yuan _________ a bowl of beef potato noodles.
2. Do you think everyone has a great weekend ?
Do you think _________ a great weekend?
3. The poor girl has no food and no shoes.
The poor girl has no food _________.
4. It's time to have dinner.
It's time _________.
5. Ann didn't have any friends Ann _________.
患者，男，72岁。咳嗽，右胸痛，痰中带血丝一周。胸部后前位片示：右肺门影增大，右上肺大片状致密影，水平裂呈反“S”样改变。
被阻塞的支气管是（）
A.右主支气管
B.右肺中叶支气管
C.右肺上叶尖后端支气管
D.右肺上叶支气管
E.右肺上叶前段支气管
