患儿男，10个月，平时发育营养正常，人工喂养。3天来腹泻，大便20余次／日，蛋花汤样大便，伴低热，偶有呕吐，1天来尿少，6小时来无尿。查体：精神萎靡，口干，眼窝及前囟凹陷，皮肤弹性差，四肢凉，血压64/40mmHg，血清钠134mmol/L。
该患儿的临床诊断是（）| Judging from recent surveys, most
experts in sleep behavior agree that there is virtually an epidemic of
sleepiness in the nation. "I can’t think of a single study that hasn’t found
Americans getting less sleep than they ought to," says Dr David. Even people who
think they are sleeping enough would probably be better off with more
rest. The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to A. the performance tests used in the study of sleep deficit B. special branches of knowledge that are being studied C. people whose behavior or reactions are being studied D. the psychological consequences of sleep deficit [单项选择]ECDIS中本船的安全参数主要包括（）。
A. 航向 B. 水深 C. 警戒矢量 D. 危险距离、安全水深和安全等深线 E. 船舶宽度 [单选题]根据企业所得税法的规定，下列项目中，纳税人在计算应纳税所得额时准予扣除的是（）
A.罚金 B.银行按规定加收的罚息 C.税收滞纳金 D.罚款和被没收的损失 [单项选择]下列叙述中正确的是( )。
A. 数据库的库结构包括数据库中各个记录的数据 B. 数据库中的数据不仅仅是数值型数据 C. 数据库管理系统的主要功能是建立数据 D. 数据库文件的结构不能由系统自动生成 [单选题] 输送的介质温度在( )℃以上时,应使用热油泵。
A.100 B.150 C.200 D.250 [填空题]为保证信息系统开发成功，正确的 【 】 和正确的开发策略方法是不可少的。
[多选题]( )适时组织查铺查哨,并不定期地检查所属单位查铺查哨制度落实情况,适时进行讲评。
A.中队 B.大队 C.支队 D.总队 [多选题]关于乘客信息系统(PIS）说法正确的是（）。
A.只以车载的显示终端为媒介 B.提供乘车须知 C.提供列车到发时间 D.提供公共媒体信息 [判断题]氯气具有强烈的刺激性和窒息性，呈黄绿色。
A.正确 B.错误 [单选题]B-B-C-0071 1 3
调节阀的时间常数由( )决定,表征阀的动特性。 A.膜头空间 B.阀芯 C.阀体 D.阀座 [单项选择]
A. strange B. rude C. friendly 我来回答: 提交
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