关于道德规范，正确的说法是（）。 A.道德规范就是像法律那样制约人的行为的一整套制度

患者女，15岁，活动后胸闷、气短1年，加重3周。现上1层楼即感不适。无晕厥、发热、关节痛、胸痛和咯血史。既往月经正常，无服用减肥药、避孕药和外伤史。无打鼾。家族史无异常。

为明确诊断应检查的项目包括（）（提示查体：血压110/70mmHg，呼吸20次/min，心率95次/min。肺动脉瓣区第二心音亢进，三尖瓣区未闻及杂音，双下肢无水肿。超声心动图：左心房内径：21mm，左心室舒张末内径40mm，右心室舒张末内径36mm，左室射血分数66%。估测肺动脉收缩压88mmHg。化验检查：肝肾功能正常，乙肝表面抗原阴性，血沉正常。甲状腺功能检查无异常。血、尿常规正常。）

A.心电图

B.血气分析

C.X线胸片

D.肺血管增强CT

E.肺灌注扫描

F.免疫学全套检查

可变分区存储管理中在动态分区分配时涉及到3个问题，下列( )不是其中之一。

A．可变分区数据结构

B．分区的分配算法

C．分区分配的操作

D．分区大小预计

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小题1:If you get into BDU, you can ________．

A．get the information of the latest business activities taking place in China

B．get the most important business information in the world

C．know more than what you expect in China

D．get all the information in China Daily小题2:This advertisement will be very helpful to ________．

A．Chinese people

B．foreign travelers

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A．understand Chinese

B．know something about the mouse

C．know how to operate a computer

D．how to use a fax machine

关于神经变性疾病，叙述错误的是（）

A.发病隐袭，多缓慢起病

B.病程较长，通常以年计算

C.临床症状多样化

D.腰椎穿刺压力明显增高

E.影像学检查可以正常

里掖角仔角梁