[简答题]random mating

[简答题]random access

[简答题]Talk at random

[简答题]Certain animal behaviors, such as mating rituals, seem to be __________ , and therefore external factors such as climate changes, food supply, or the presence of other animals of the same species.
A. A．learned… immune to
B．innate… unaffected by
C．intricate… belong to
D．specific… confused with

[填空题]A mating group consists of two females and one male.

[单项选择]Some animal activities, such as mating, migration, and hibernate, have a yearly cycle.

[单项选择]A. Mating habits of squid and octopus.
B. The evolution of certain forms of sea life.
C. The study of marine shells.
D. Survival skills of sea creatures.

[简答题]随机游走(random walk)

[简答题]超市货品摆放布局 random organization

[单项选择]The representative samples were （）at random
A. being drawn
B. drawing
C. drawn
D. draw

[填空题] Party Random Thoughts

Last night, pressured by well-intentioned friends, for the first time in months, I came out of writer’s seclusion and attended a cocktail party which is another word for a social gathering. So there I was, trapped in a crowded room, people milling(乱转) all around me, each with a drink in hand, chitchatting while the waiters skillfully negotiated their way through the bustle with trays of colorful beverages and fancy hors d’oeuvres (小菜). It was definitely party time! Yet, instead of losing myself to the convivial (欢乐的) surroundings of food, drink and conversations, I found myself retreating back into my head all the way to China where the subject of American sociality is of great interest. In China, many of my students are curious about how Americans party and have a good time. "What do you do Sing and dance To what kind of music What’s American party talk How do you dress and act at a party How about food Wha