关于内科腹痛的特点正确的是 A．起病急 B．疼痛部位不固定 C．先腹痛后发热 D．压

对于限制民事行为能力人订立的合同，善意相对人应在（）个月内要求法定代理人追认合同效力。

A.半

B.1

C.2

D.3

关于苯巴比妥类的叙述，哪项正确（）

A.可延长氯通道开放时间而减少Cl^-内流，引起去极化

B.低浓度时抑制C²⁺a依赖的递质释放

C.需用至镇静剂量时才显示抗焦虑作用

D.目前常用于镇静和催眠

E.大剂量也不抑制呼吸

阅读理解

To do for you

     Baby and me

     St. Benedicts Family Medical Center's "Baby and me" classes, 11 a.m. to noon Tuesdays, at Jerome

Public Library, 101 First Ave. E.

     This week's topic: story telling. The class is educational support for parents and babies. A baby scale is available each week.

     Free; 324-6133

     Infant (婴儿)care

     Infant care class of St. Benedicts' prepared childbirth series (系列), 7-9 p.m. Wednesday, at Jerome

Public Library, 101 First Ave. E.

     Topics: baby care and early parenting. The class is offered separately, or as part of the childbirth series. Mothers may register (登记) even if their babies will be born at a different hospital.

     Cost is $5. Register: 732-3148.

     Self defense (自我保护)

     College of Southern Idaho's Community Education Center is offering a course "Self defense," 7-8:30

p.m. Thursdays, beginning this week to Dec. 16, in room 304 in the College of Southern Idaho gym.

Bryan Matsuoka and Gary Phelps will instruct.

     Learn defensive skills and the coordination (协调) of mind and body.

     Cost is $105. Register: 732-6442 or communityed.csi.edu.

     Fitness for seniors

     South Central Public Health District is observing Fall Prevention AWARENESS Week Sept.19-25 to raise awareness (意识)of falls and reduce fall risk in south central Idaho.

     The health district will provide a Fit and Fall proof class leader training from 9 a.m. to 3:30 p.m. Friday at 1020 Washington St. N. in Twin Fall. Training is for individuals interested in volunteering. Volunteers aren't required to have a physical education degree but should have exercise experience. Register for the

training by Wednesday: 737-5988.

     "To do for you" is a listing of health-related activities, events and education in the following Monday.

1. "Baby and me" classes are held mainly for ______.

A. teachers and parents

B. children and teachers

C. parents and children

D. parents and babysitters (保姆)

2. Which activity can help the women who will soon have babies?

A. Baby and me

B. Infant care    

C. Self defense

D. Fitness for seniors

3. Which of the following phone number can help you reduce fall risk?

A. 737-5988

B. 324-6133

C. 732-6442

D. 732-3148

如图是元素周期表前四周期的一部分，下列对相关元素的叙述正确的是（　　）

①X元素的原子有二个电子层，处于周期表的第15个纵行　②Z的原子序数为31，单质常温下为液体　③气态氢化物水溶液的酸性X＜Y＜Z　④X的气态氢化物与Y的最高价氧化物的水化物能反应生成盐　⑤Z的原子序数比Y大19，Y的原子序数比X大9．

A．只有②

B．只有①③④⑤

C．只有①②③④

D．全部