[判断题]联锁是指道岔、进路和信号机三者之间按一定的规则和条件建立起相-我要搜题网

Brazil has become one of the developing world’s great successes at reducing population growth—but more by accident that design. While countries such as India have made joint efforts to reduce birth rates, Brazil has had better result without really trying, says George Martine at Harvard.
Brazil’s population growth rate has dropped from 2.99% a year between 1951 and 1960 to 1.93% a year between 1981 and 1990, and Brazilian women now have only 2.7 children on average. Martine says this figure may have fallen still further since 1990, an achievement that makes it the envy of many other Third World countries.
Martine puts it down to, among other things, soap operas (通俗电视连续剧) and instalment (分期付款) plans introduced in the 1970s. Both played an important, although indirect, role in lowering the birth rate. Brazil is one of the world’s biggest producers of soap operas. Globo, Brazil’s most popular television network, shows three hours of soap
A. The increase in birth rate will promote consumption.
B. The desire for consumption helps to reduce birth rate.
C. Consumption patterns and reproduction patterns are contradictory.
D. A country’s production is limited by its population growth.

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[判断题]直探头对长形工件探伤时，由于声束扩散，一部分能量打在工件侧面转换为横波，经过几次波型转换后，要比单按纵波垂直反射回波时间滞后。所以称为迟到波
A.正确
B.错误

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[单项选择]声卡是多媒体计算机不可缺少的组成部分，是（）
A. 纸做的卡片
B. 塑料做的卡片
C. 一块专用电路板
D. 一种圆形唱片

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[多选题]企业法人信用等级限定是在机评信用等级的基础上，根据客户的（）等情况对客户信用等级初评结果进行限定。
A.或有负债
B.报表审计
C.还本付息
D.税收返还

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[单项选择]如果需要使对话框中的网格更精细，正确的操作是（）。
A. 单击对话框中的网格
B. 按Shift键单击网格
C. 按Ctrl键（Apple键）单击网格
D. 按Alt键单击网格

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[填空题]无缝线路设计时通常最低轨温等于()。

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[填空题]如在地下停车场走线管无法靠墙布放时，馈线走线管可与其它线管一起走线，并用（）与其它线管固定。

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[判断题]【判断题】配合停电的同杆（塔）架设线路装设接地线要求与检修线路相同。
A.正确
B.错误

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[简答题]简述联合调节器功率调节系统的作用及调节过程？

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[单项选择]

3

Forget football. At many high schools, the fiercest competition is between Coke and Pepsi over exclusive "pouring rights" to sell on campus. But last week Jeffrey Dunn, president of Coca-Cola Americas, called a timeout. Coke’s machines will now also stock water, juice, and other healthful options--even rival brands and their facades will feature school scenes and other "noncommercial graphics" instead of Coke’s vivid red logo. "The pendulum needs to swing back" on school-based marketing, said Dunn.
Coke’s about-face—-particularly the call to end the exclusive deals that bottlers make with school districts—comes amid rising concern over kids’ health. American children are growing ever more obese and developing weight-related diseases usually found in adults. While inactivity and huge helpings factor heavily, a recent study in the Lancet fingered so da pop as a likely culprit. Communities--and legislators--are already on the case. La
A. the fiercest competition at high schools
B. thought to have ill impact on students
C. competing with commercials on campus
D. brought into disrepute by Coke and Pepsi

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[判断题]压缩机油路进行油冲洗时，润滑油温度一般控制在80℃～100℃。
A.正确
B.错误

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[单项选择]七岁男性患儿紫斑急性发作，小腿及臀部较多，颜色较鲜明，伴有瘙痒，或伴发热，偶有腹痛，关节疼痛，尿血，舌红苔黄，脉弦数，治疗首选方剂是（）
A. 犀角地黄汤
B. 归脾汤
C. 连翘败毒散
D. 大补阴丸
E. 桃仁汤

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[单选题]国际航空运输协会的《危险品规则》每（）年更新一次。
A. A
B.B
C. C
D. D

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[单项选择]患者张某因发烧待查入院治疗，1天后死亡。张某家属在尸体火化后提出异议，认为医院的治疗行为存在过失，并多次协商未果，遂向法院起诉。法院委托当地市医学会对本案进行医疗事故技术鉴定。鉴定专家应当（）
A. 以尸体已经火化，无法查明因果关系为由不予处理
B. 直接认定医疗机构承担责任
C. 认定医院没有要求尸体解剖，承担举证不能的责任
D. 根据病历资料，对医方的医疗行为是否构成医疗事故进行鉴定
E. 让医方拿出充分证据证明自己的医疗行为无过错

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[判断题]供电方作业人员应会同客户工作负责人检查现场所做的安全措施，对具体的设备指明实际的隔离措施，证明检修设备确无电压。
A.正确
B.错误

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[单选题]关于建设项目单价合同特点的说法，正确的是( )。
A.实施项目的工程性质和工程量应在事先确定
B.实际总价按工程量清单工程量与合同单价确定
C.承包方在投标报价中不需要考虑风险费用
D.实际工程价格可能大于也可能小于合同价格

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[单选题]腰带和保险带、绳应有足够的机械强度，材质应耐磨，卡环（钩）应具有保险装置，操作应灵活。保险带、绳使用长度在（）以上的应加缓冲器。
A.2m
B.3m
C.4m
D.5m

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[单选题]在脚手架使用期间，（）拆除主节点处的纵、横向水平杆，纵、横向扫地杆和连墙件。
A.可以
B.允许
C.不准
D.禁止

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[单选题]硫化氢对金属的腐蚀形式有电化学失重腐蚀.氢脆和硫化物应力腐蚀开裂,其中以后两者为主,一般统称为( )。
A.氢脆破坏
B.电化学失重腐蚀
C.硫化物应力腐蚀开裂
D.氢致开裂

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[单项选择]情志变动影响气机，（）则气上。
A. 喜
B. 怒
C. 悲
D. 忧