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问题 单项选择题

已知红花豌豆与白花豌豆杂交，F1全部是红花豌豆，让F1与隐性亲本测交产生测交一代，问测交一代中红花豌豆和白花豌豆的比例是（）

A.4︰1

B.3︰1

C.2︰1

D.1︰1

答案

参考答案：D

判断题

应收账款的功能是指其在生产经营中的作用，主要包括两方面的功能，一是增加销售，二是减少存货。（）
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单项选择题

Serialization delay and（）delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the（）on the wire, and queuing delay (depth of the queue) are improved by increasing the（）from a 128kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an （）in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the（）of the application will only result in an increased bandwidth with no positive effects on performance.

Serialization delay and（）delay are the two components of network delay that are improved by increasing bandwidth.

A．buffering

B．queuing

C．receiving

D．timing
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