急性肾小球肾炎合并高血压脑病时，使用硝普钠的注意事项中错误的是（） A.血压监测 B

开辟新航路的环球航行，先后经过的海洋是（）①大西洋②印度洋③北冰洋④太平洋

A.①②④

B.④③①

C.①④②

D.④②①

“Have a nice day” may be a pleasant gesture or a meaningless expression. When my friend Maxie says “Have a nice day” with a smile, I know she sincerely cares about what happens to me. I feel loved and secure since another person cares about me and wishes me well. 

“Have a nice day. Next!” The version of the expression is spoken by a salesgirl at supermarket who is rushing me and my groceries out the door. The words came out in the same tone ( 腔调 ) with a fixed procedure. They are spoken at me, not to me. Obviously, the concern for my day and everyone else’s is the management’s attempt to increase business.

The expression is one of those behaviors that help people get along with each other. Sometimes it indicates the end of a meeting. As soon as you hear it, you know the meeting at an end. Sometimes the expression saves us when we don’t know what to say. “Oh, you just had a tooth out? I’m terribly sorry, but have a nice day”.

The expression can be pleasant. If a stranger says “Have a nice day” to you, you may find it heart-warming because someone you don’t know has tried to be nice to you.

Although the use of the expression is insincere, meaningless social custom at times, there is nothing wrong with the sentence except that it is a little uninteresting. The salesgirl, the waitress, the teacher, and the countless others who speak it without thinking may not really care about my day. But in a strange and comfortable way, it’s nice to know they care enough to pretend they care when they really don’t care all that much. While the expression may not often be sincere, it is always spoken. The point is that people say it all the time when they like.

小题1:How does the author understand Maxie’s words?  

A．Maxie shows her anxiety to the author.

B．Maxie really wishes the author a good day.

C．Maxie encourages the author to stay happy.

D．Maxie really worries about the author’s security.小题2:What does the underlined sentence in Paragraph 2 mean?

A．The salesgirl is rude.

B．The salesgirl is bored.

C．The salesgirl cares about me.

D．The salesgirl says the words as nothing special.小题3:According to the last paragraph, people say“Have a nice day”_______.

A．sincerely

B．as thanks

C．as a habit

D．encouragingly小题4:What is the best title of the passage?

A．Have a Nice Day—a Social Custom

B．Have a Nice Day—a Pleasant Gesture

C．Have a Nice Day—a Heart-warming Greeting

D．Have a Nice Day—a Polite Ending of a Conversation

表达式10Mod2的值为( )。

A．0

B．1

C．2

D．5

我国现阶段的爱国统一战线包括内地和我国港澳台及海外两个范围的联盟，内地范围内的联盟是以为政治基础的。

A．爱国主义

B． * * 主义

C．社会主义

D．国际主义

肉毒毒素的毒性为（）

A．胃脏毒性

B．肝肾毒性

C．心肺毒性

D．神经毒性