对于刚娩出的新生儿，关于复苏囊的应用，下列说法正确的是（）

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问题多项选择题

A.经初始复苏处理后无自主呼吸，是其应用指征之一

B.经初始复苏处理后虽有自主呼吸，心率仍低于60次/分，是其应用指征之一

C.应用复苏囊后心率增加并稳定在100次/分以上，为复苏有效指标之一

D.应用复苏囊后有自主呼吸，呼吸频率和深度达到正常为复苏有效指标之一

E.应用复苏囊后肤色转成粉红色为复苏有效指标之一

答案

参考答案：A, C, D, E

单项选择题

A typical application of this (71) is ADSL. It is emerging as the technology for home-and small-office Internet connectivity. It provides either 1.5 Mb/s～8 Mb/s from the network to the user and 64 Kb/s～512 Kb/s in the reverse direction depending on the distance, 12 000 or 18 000 feet.. The different speed for each direction gives it the (72) label. ADSL is designed to take advantage of the fact that video-on demand, telecommuting, and Internet access traffic are inherently asymmetrical. The user (73) a brief message up to the network and receives a ton of data coming back, either a movie or a piece of data download. Under such a scenario, low-speed traffic to the network is just fine. ADSL delivers high (74) where you need it and only uses a single copper pair. Through multiplexing, it also reserves (75) of the bandwidth for POTS.

A．channel

B．computation

C．speed

D．bandwidth

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单项选择题

下列合金材料中，用于旋转阳极X线管靶面的是( )。

A．钨镍合金
B．镍铼合金
C．钨铜合金
D．铼钨合金
E．镍铁合金

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