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【单选题】
Which of the following statements about O. Henry is NOT right?A.
He wrote about the poor people.
B.
The ends of his stories are always surprising.
C.
Many of his stories contain a great deal of slang and colloquial expressions.
D.
The plots are usually clumsy.
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【判断题】The amount of income that would result from the best available alternative to the proposed use of cash or its equivalent is called differential cost
A.
正确
B.
错误
【多选题】麻黄碱与肾上腺素相比，前者的特点是
A.
中枢兴奋较明显
B.
可口服给药
C.
扩张支气管作用强、快、短
D.
扩张支气管作用温和而持久
E.
反复应用易产生快速耐受性
【判断题】“顺路导线”是与公路路线线形保持一致的,是在勘测阶段已经完成,故在施工前不需要自行设定,是下一个任务的测设中桩的基础,只需要将其交点及转点恢复即可。
A.
正确
B.
错误
【简答题】mRNA差异显示(mRNA differential display)
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