[单项选择]人工监护胎儿宫内发育情况的方法为（）。
A. B超
B. 计数胎动
C. 测量血压
D. 测量子宫底高度
E. 监测胎头双顶径

The earliest controversies about the relationship between photography and art centered on whether photography’s fidelity to appearances and dependence on a machine allowed it to be a fine art, as distinct from merely a practical art. Throughout the nineteenth century, the defense of photography was identical with the struggle to establish it as a fine art. Against the charge that photography was a soulless, mechanical copying of reality, photographers asserted that it was instead a privileged way of seeing, a revolt against commonplace vision, and no less worthy an art than painting.
Ironically, now that photography is securely established as a fine art, many photographers find it pretentious or irrelevant to label it as such. Serious photographers variously claim to be finding, recording, impartially observing, witnessing events, exploring themselves--anything but making works of art. In the nineteen century, photography’ s association with the real world pla
A. set forth an analogy between the Abstract Expressionist painters and classical Modernist painters
B. provide a contrast against serious contemporary photographers
C. provide an explanation of why serious photography, like other Contemporary visual forms, not and should not pretend to be an art
D. provide an example of artists who, like serious contemporary photographers, disavowed traditionally accepted aims of modem art