【单选题】What's the common opinion of Sue Leslie and Elizabeth Cade?
A.
Cosmetic surgery is necessary for people to look their best.
B.
People should be happy with themselves, regardless of how they look.
C.
People should go to "Sue's Salon" to make them look younger.
D.
It's ridiculous for people to make themselves beautiful in some unhealthy ways.
【单选题】The long run average cost curve may initially slope downward due to ______
B.
increasing marginal returns.
C.
decreasing average fixed costs.
【简答题】药物制剂稳定性研究范围包括()、()、()。
【单选题】在可编程计数器/定时器8253的6种工作方式中,能够自动重复工作的2种方式是()。
【简答题】班主任的基本职责就是对全班学生_______。
【单选题】“What’s Sue’s brother?” “_____.”
【多选题】下列哪些现象是接近因素在人际吸引中所起作用的写照?
【单选题】The slope of the budget line represents an opportunity cost because, moving along the line,
C.
additional income must be earned in order to purchase more of one good.
D.
a consumer must give up some of one good in order to get more of the other.
E.
it is possible to consume more of both goods.
【单选题】We can conclude from the passage that ______.
A.
most teachers complained after the initial shock
B.
four percent of the teachers went up to 300 volts
C.
the majority of teachers did not deliver shocks above 150 volts
D.
thirty-eight percent of all the subjects did not deliver shock all the way up to 450 volts.
【简答题】Consider the example shown in Figure 2–1, with the “martini-glass” shape showing the net price of the factory product. Suppose all consumers switch to spring-loaded sneakers(装了弹簧的跑鞋), decreasing walki...