社会主义金融职业道德基本原则，要求金融从业人员在自己业务实践中做到以下哪些内容？（）

IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the (71) of origin of a message, multicasting initially sends just one (72) and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby (73) the bandwidth consumed. Network performance is significantly (74) because it isn’t bogged down with the processing and transmission of several large data fries; each receiving computer doesn’t have to (75) the transmitting server for the file.

A．point

B．bottom

C．head

D．sight

患者，50岁，双眼不适10余年，加重1个月。检查：双眼睑结膜肥厚，网状瘢痕，上睑内翻，泪膜破裂时间6秒，最可能诊断为（）

A.沙眼

B.泡性结膜炎

C.腺病毒性结膜炎

D.春季卡他性结膜炎

E.淋球菌性结膜炎

细胞核的功能包括（）

A.贮存遗传信息

B.复制遗传信息

C.转录遗传信息

D.指导蛋白质合成

每单位流量的空气（）进入发动机所产生的推力称为单位推力。

A、cm³/s

B、kg/s

C、m³/s

D、g/s