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问题 选择题

“质傲清霜色，香含秋露华．”决定菊花深秋开放的非生物因素是（　　）

A．长日照

B．短日照

C．温度

D．空气

答案

“质傲清霜色，香含秋露华．”说的是菊花临霜开放清雅高洁，花形优美，色彩绚丽．光决定植物的生理和分布，也影响动物的繁殖和活动时间等． 春天和秋天主要的差别是光照强度不同，桃树春天开花是光照时间长，菊花秋天开花是光照时间短．这种差别主要是光照时间不同造成的．

故选：B．

单项选择题

地面管制或塔台管制室许可航空器滑行（空中滑行）应当发出（）。

A.滑行（空中滑行）路线

B.起飞顺序、方向及进入跑道的等待点

C.进近和区域管制室对离场航空器的有关要求

D.A、B和C
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单项选择题

David, a hyperkinetic 5-year-old, exhibits signs of extreme restlessness, short attention span, and impulsiveness. In order to alter the child’s milieu that would likely be most therapeutic for him, what could the nurse do()

A. Define behaviors of the child that will be acceptable and those that will be unacceptable.

B. Allow the child freedom to choose activities in which to participate and other children with whom to associate.

C. Increase the child’s sensory stimulation and activity.

D. Limit the child’s opportunities to display anger and frustration.
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