我国提出建立医院伦理委员会的主张是哪一年代（）。 A.20世纪20年代 B.20世纪

In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.

How does the developer of a large database system achieve (1) and data independence How does the developer make certain that stored items are (2) and do not simply disappear in the immensities of the database, as if in quicksand

One solution is to set up a (3) system, in which all data (the internal level), all records and files (the conceptual level), and all user interfaces (the external level) are controlled by one central programming group. This may seem the most useful solution. But worldwide enterprises such as the meteorological and satellite tracking networks, IBM, and General Motors gather and record information at a very large number of locations. To stay flexible and avoid top - heaviness, such an organization might want to avoid excessive centralization.

A centralized system is (4) , but it may not be responsive to user needs. This is particularly true in a large organization - the worldwide meteorological network, for example, Data-gathering methods in the Himalayas, the equatorial jungles are different in very possible way. It is reasonable to believe that the best choices for the corresponding data storage and access structures ought to be just as different. A centralized database system would not (5) such differences.

2（）

A．usable

B．searchable

C．independent

D．retrievable

如图为小华同学对自己家族中有无酒窝性状的调查示意图．请你根据图中提供的信息，回答下列问题：

（1）人的有酒窝与无酒窝，在遗传学中称为______．

（2）依据调查示意图中的哪对夫妻组合，能够迅速判断出显隐性性状？______．

（3）若用B、b表示控制这对性状的显、隐性基因，则小华的基因组成为______，他爸爸的基因组成为______．

（4）如果小华有亲兄弟姐妹，则控制他们酒窝性状的基因组成可能是______．

（5）如果小华的父母再生育一个孩子，请预计这个孩子为无酒窝的机率是______．

高血压患者，生气后，血压升至250/120mmHg，发生癫痫样抽搐，呕吐，意识模糊等中枢神经系统功能障碍的表现，脑CT未见异常，最可能的诊断是

A．脑出血

B．高血压脑病

C．蛛网膜下腔出血

D．脑梗死

E．高血压危象

按《抗震规范》设计的建筑，当遭受本地区设防烈度的地震影响时，建筑物应处于下列何种状态

A．不受损坏
B．一般不受损坏或不需修理仍可继续使用
C．可能损坏，经一般修理或不需修理仍可继续使用
D．严重损坏，需大修后方可继续使用