患者，女，46岁，急性胆囊炎，全身麻醉下行胆囊除术，手术顺利，术毕入麻醉恢复室，1小

国际商品协定下的协定价格是世界“封闭市场”价格。

女性，31岁。咳嗽，咳白色泡沫样痰1年，胸痛20d，X线胸片显示右肺下叶背段有一直径3cm分叶状阴影，密度不均匀并见钙化点。

经药物治疗后，胸痛消失，但复查胸片，块影略有增大。进一步必须做（）

A.纵隔镜检查

B.放射性核素扫描

C.结核菌素试验

D.支气管镜检查

E.晨痰培养加药敏试验

用所给词的适当形式填空。

1. My grandparents live in a village nearby.

   I go ______ (see) them once a week.

2. Does your brother enjoy ______ (take) a walk after supper?

3. I would love ______ (make) friends with him.

4. Can you come to ______ (I) birthday party?

5. Thanks for _______ (tell) me the way to the post office.

6. Listen! Who _______ (sing) in the next room?

7. Jackson ______ (be) my favorite singer.

   I enjoy ______ (listen) to his song.

8. Hurry up. The film ______ (begin) in a few minutes.

9. ______ (not read) in the sun. It's bad for your eyes.

10. You must look after yourself and keep ______ (health).

纳税人自产应纳资源税的产品对外销售，其纳税环节应在（）。

A.生产环节

B.销售环节

C.供应环节

D.收款环节

甲乙两数的比是3 ∶4 ，乙数减甲数得10 ，乙数是（    ）。