对中毒毒物的抗毒能力多遵循下列哪些规律（） A.老年、儿童低于青、中年成人 B.女性

下列关于机械波的认识，正确的是（　　）

A．有波源就一定会形成机械波

B．介质中各质点的振动频率与波源的振动频率相同

C．机械波向右传播时，处于波峰的质点也向右迁移

D．机械波向右传播时，右方的质点比左方的质点早一点振动

清代军机处的设立，标志着君主专制的中央集权制度达到顶峰，其依据是

A．“军国大计，罔不总揽”

B．“只供传述缮撰，而不能稍有赞画于其间”

C．军机处办事，号称“勤.速.密”

D．“备论思顾问之职……中有一二权势稍重者，皆上窃君上之威灵”

A Day of Design

Sunday, June 17,2010

9 a. m. ~ 4 p. m.

Thomas College Student Center

Join us for a free day of fun! A Day of Design will encourage those interested in flowers and design to get in touch with their creative side and get some tips from the experts – Jeff and Scott. Pleas see the schedule below for details about this wonderful opportunity!

9:00 a.m. - 10:00 a.m.

Registration (登记) for the day runs from 9 a.m. in the Student Center. Later guests will take a tour of the Thomas College campus before the day’s events.

10:30 a. m. ~ 12:00 p. m.

Jeff and Scott will design more than a dozen arrangements in a variety of sizes and colors and auction (拍卖) will be held and guests will have the opportunity to bid on the flower arrangements.

12:00 p. m. ~ 1:00 p. m.

A delightful boxed lunch will be served. During the lunch hour, Jeff and Scott will create a centerpiece for the holiday table and give tips for creating a beautiful centerpiece using things found in the home.

3:00 p. m. ~ 4:00 p. m.

A fitting way to end the day – guests are invited to enjoy a wine and cheese party. Jeff and Scott will be available to answer questions or just talk about flowers!

There is no charge for this event.

REGISTER NOW!

Space is limited to 45 guests.

64．What are guests supposed to do from 9:00 a. m. to 10:30 a. m.?

A．To design flower arrangements.    

B．To enjoy a wine and cheese party.

C．To learn how to create a centerpiece.    

D．To take a tour of the Thomas College campus. 

65．When will an auction be held?

A．9:00 a.m. ~ 10:30 a.m.   B．10:30 a.m. ~ 12:00 p.m.

C．1:00 p.m. ~ 3:00 p. m.    D．3:00 p. m. ~ 4:00 p. m.

66．The underlined word “centerpiece” is probably         .

A．a photo on the wall                       B．a picture that has been drawn

C．a decoration for the center of a table           D．a flower that is carved out of stone

67．We can learn from the passage that A Day of Design         .

A．lasts for eight hours                      B．is free of charge

C．is held annually in July                    D．is aimed at fashion designers

在“寂兮寥兮”中，“寥”之义与下列哪个词义相同（）

A.名曰夷

B.名曰希

C.名曰微

D.归根曰静

简述自动回信号通过PCM装置由光纤传输的过程。