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【单选题】
枸橼酸钠作为抗凝剂用于输血的主要优点是( )A.
普及
B.
毒性低
C.
用量少
D.
价格低
E.
不改变血细胞体积
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】For a combined FDM / TDM system, if the channel is divided into F sub bands and the time is divided into T slots, then the channel will be able to support f t ______concurrent calls.
A.
F
B.
T
C.
F+T
D.
F·T
【简答题】Suppose that Tang and Wilson must split a fixed 400 pounds of food between them. Tang’s utility function is U T = sqrt ( F 1 ) and Wilson’s utility function is UW = 1⁄2 sqrt ( F 2 ), where F 1 and F 2...
【简答题】Read the text and mark the statements T (true) or F (false). If graffiti is the art of today's streetwise agers, then skateboarding is their sport. Skateboarding has never been more popular.There ...
【简答题】vlan技术可以实现不同工作组(虚拟局域网vlan)之间隔离,把广播帧和单播帧都隔离了。实际需要隔离的是( )帧,不需要隔离( )帧。通过路由技术实现不同网络之间( )帧互通。三层交换机端口一般作为( )端口,此时交换机级联端口设置( ),然后创建下联二层交换机相应的VLAN,并配置该Vlan(虚接口)的地址,开启( )功能。
【简答题】L ook at the following utterances, then decide which involve gesturally deictic expressions and which involve symbolically deictic expressions. 下面各句中哪些指示语是手势用法,哪些是象征用法 a. This city is really beautiful...
【简答题】组建虚拟局域网需要__________设备。
【单选题】1 Listening for Specific Information Listen to the recording. While you are listening, fill in the blanks with T if the statements are true or F if they are false. Then compare your answers with those...
A.
true
B.
false
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