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【单选题】
决定家兔色的基因白色(H)对黑色(h)是显性的，一对白色家兔生了一只黑家兔。这对白色家兔的基因组成是 [ ]A.
HH和Hh
B.
Hh和Hh
C.
hh和Hh
D.
hh和hh
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【单选题】Ms. Natalia Servoski Odvik Industries Olag, Ukraine Dear Ms. Servoski, I am writing to express my gratitude for your generous hospitality last week. I very much enjoyed having the opportunity to (90) ...
A.
observe
B.
trial
C.
integrate
D.
outsource
【单选题】Which of the following characteristics make an industry more conducive to collusive behavior?
A.
Firms in the industry have very different marginal costs of production.
B.
Firms in the industry produce goods with significantly different product attributes.
C.
Firms in the industry are operating at a maximum productive capacity that cannot be easily altered in the short run.
D.
Firms in the industry serve customers that can easily switch between firms as they search for the best price.
【简答题】三聚氰胺
【单选题】下列对三聚氰胺的说法正确的是（ ）。
A.
三聚氰胺是由C、N、H三种原子构成
B.
三聚氰胺的相对分子质量为126克
C.
三聚氰胺含氮量约为66.7%
D.
三聚氰胺中C、N元素的质量比为1：2
【简答题】三聚氰胺
【简答题】三聚氰胺事件发生在()
【单选题】9 A problem that can arise in using trade protectionism to develop international competitiveness for a domestic industry is that ________.
A.
it is difficult to identify industries that have a high probability of reaching competitiveness
B.
assistance should be given only if entry barriers to new firms are very low
C.
the protecting countries lose too much revenue from import duties
D.
a short product life cycle makes the industry quickly noncompetitive
【单选题】听力原文：W: Now that we are nearing the end of our last year of school, I am very concerned about finding a job. M: Have you checked with the employment resource center here at school? W: Yes, there were ...
A.
Check with the employment resource center at school.
B.
Send her resumes to all the most prominent accounting firms.
C.
Resort to headhunters (猎头公司).
D.
Ask for help from her father first.
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