砌筑硝酸铵生产车间的承重墙体时，施工中不得选用的材料是( )。A．加气混凝土砌块

Events Calendar

TUESDAY

Landscape Pests (害虫)

Learn to identify, control and prevent seasonal landscape-disease and landscape-pest problems at the workshop, 3:30 pm. – 5 pm. Tuesday at the US National Arboretum, 3501 New York Ave NE, Washington. $15; registration required.

202-245-4521 or www.usna.usda.gov.

THROUGH AUGUST 3

Horticultural(园艺的) Art

Watercolors, pen-and-ink drawings and colored-pencil pieces by the Brookside Gardens School of Botanical (植物学的) Art and Illustration will be on display at the exhibit Botanic 2007: The Art and Science of Plants at Brookside Gardens Visitors Center, 1800 Glenallan Ave, Wheaton, through Aug. 3. Free. 301-962-1400 or www.brooksidegardens.org.

THROUGH SEPTEMBER 9

Botanical Art

Visit Patterns in Nature, an exhibit by Amy Lamb featuring photographs of flowers, leaves and other botanical life, at the US Botanic Garden Conservatory （温室），West Orangerie, 100 Maryland Ave SW, Washington, through Sept. 9. The conservatory is open 10 am. – 5 pm. Daily. Free. 202-225-8333.

THROUGH OCTOBER 8

Botanic Garden Exhibit

Celebrating America’s Public Gardens is on view through Oct. 8 at the US Botanic Garden, 100 Maryland Ave SW, Washington. The exhibit, on the Conservatory Terrace and in the National Garden, features displays of 20 public botanic gardens across the country. Hours are 10 am. – 5 pm. Daily. Free. 202-200-8956.

小题1:If you want to record your name for an event in advance, you may call _____.

A．202-225-8333

B．202-245-4521

C．301-962-1400

D．202-200-8956小题2: If you go to Botanic Garden Exhibit, you _____.

A．can enjoy drawings and coloured-pencil pieces

B．can learn how to kill pests living on the plants

C．can find displays of 20 botanic gardens across the country

D．will enjoy the photographs of flowers and leaves小题3: From the advertisement, we learn _____.

A．the first event is about growing healthy plants

B．all of the events are free of charge

C．there is no time limit to all the events

D．you can find the information of all the events either by phone or by e-mail

项目监理机构收到施工单位报送的工程材料、构配件、设备报审表后，应重点审查工程财力……、构配件、设备的（）。

A.质量证明文件

B.采购台同

C.设计要求文件

D.考查报告

AVM、AVF及动脉瘤等血管性疾病的介入栓塞治疗术，最广泛应用于（）。

A.中枢神经系统

B.胸部

C.腹部

D.四肢

E.头颈部

病案以纸张作为存储医疗资料的载体，通常可将其分为（）

A、正规病案

B、手册式病案

C、门诊病案

D、住院病案

E、表格式病案

精子活动率检查时，需要在高倍镜下观察的精子数为（）

A.20个

B.50个

C.100个

D.200个

E.500个