为阿片受体拮抗剂，临床用作阿片类药物中毒的解救药（）。 A．布托啡诺  B．纳洛酮

结果由政府药品监督管理部门发布药品质量检验公告的检验属于（）

A.抽查性检验

B.注册检验

C.国家检验

D.委托检验

E.进口检验

乳果糖治疗肝性脑病的主要机制是（）

A.抑制肠道产尿素酶的细菌

B.被细菌分解为乳酸和醋酸，降低肠道内pH值

C.与游离氨结合使氨失去毒性

D.增加尿素合成而降低血氨

E.纠正氨基酸代谢不平衡，抑制神经递质的形成

什么是广义平稳？什么是狭义平稳？它们之间有什么关系？

When we want to tell other people what we think, we can do it with the help of words. We can also do it in many other ways, too. Sometimes we move our heads up and down when we want to say "yes", and we shake our heads when we want to say "no " Some people can’t hear or speak. They talk with the help of gestures(手势). People from other countries often have to do it if they don’t know your language.
Here is a story. An American was once having his holiday in Italy, but he could not speak Italian. One day he went to a restaurant and sat down at a table. When the waiter came, the American opened his mouth, put his fingers in it and took them out again. In this way he wanted to say "Bring me something to eat". The waiter soon brought him a cup of tea. The American shook his head and the waiter understood that he didn’t want tea. So he took it away and brought him a glass of milk. The American shook his head again. He was very hungry now and looked sad. He was just going to leave the restaurant when another man came in. When this man saw the waiter, he put his hands on his stomach (胃). In a few minutes there was a large plate of bread and meat on the table in front of him.

If you can’t ______, you may talk with the help of gestures.

A．write and read

B．say or sing

C．hear and speak

D．go or come

企业法人要结合本企业实际，制定各项安全管理措施，杜绝各类重大事故的发生。