患者李某，男，7岁，因上呼吸道感染收住某医院儿科病房。当时高热39℃，咳嗽，经抗生素

缺词填空。

      Most American families are smaller than the families in other countries. Most American families

have one or two 1.c_____ each.

      Children in the US will leave their parents’ home when they grow up. They usually live 2. f_____

from their parents because they want to find good jobs. They often write to their parents or 3.t_____ them. And they often go to 4. v_____  their parents on holiday.

      Parents usually 5. l_____ their children choose their own jobs. Americans think 6. i_____    important

for young people to decide on their lives by 7.  t_____ .

      Children 8. b_____  to do some work around their house when they are very young. And in many

families, parents 9. g_____  some money to their children as a prize (奖赏) so that they learn how to

make money10. l_____ 

下列不属于酶标记技术的是（）

A.单向免疫扩散试验

B.免疫印迹法

C.免疫渗滤试验

D.免疫层析试验

E.斑点-ELISA

在对焊法兰的几种形式中，公称直径规格范围最大的是（）。

A．光滑式对焊法兰

B．凹凸式密封面对焊法兰

C．榫槽密封面对焊法兰

D．梯形槽式密封面对焊法兰

取得乙级资质证书的规划设计单位，下列( )项规划设计任务要受到限制。

A．50万人口以上中小城市总体规划和各项专项规划

B．研究拟定大型工程项目选址意见书

C．各种详细规划

D．项目建议书及可行性研究方案

热平衡是指系统内部各部分之间及系统与外界没有温差，也会发生热传递。