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【单选题】
质粒载体是在天然质粒的基础上为适应实验室操作而进行构建的，构建方法为A.
人工构建
B.
天然合成
C.
化学提取
D.
生物合成
E.
以上都是
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反馈参考答案：
举一反三
【单选题】In larger firms, accountants also perform , to ensure that the financial records of the company are accurate.
A.
internal audits
B.
account receivable
C.
functional manager
D.
financial record
【判断题】Economies of scale could mean either that larger firms or a larger industry would be more efficient.
A.
正确
B.
错误
【单选题】Visual FoxPro中,将当前索引文件中的"姓名"设置为当前索引,应输入的命令是().
A.
SET ORDER 姓名
B.
SET 姓名
C.
SET ORDER TO TAG 姓名
D.
SET INDEX TO 姓名
【单选题】Jim's father is afraid that he may ________ to larger firms if Jim runs the company.
A.
lose sight
B.
lose track
C.
lose touch
D.
lose out
【判断题】For a firm, strategic interactions with other firms in the market become more important as the number of firms in the market becomes larger.
A.
正确
B.
错误
【简答题】Visual FoxPro中,将当前索引文件中的"姓名"设置为当前索引,应输入的命令是().A. SET ORDER 姓名 B. SET 姓名 C. SET ORDER TO TAG 姓名 D. SET INDEX TO 姓名
【单选题】The larger the number of firms in a monopolistic competition situation,
A.
the larger are that country's exports
B.
the higher is the price charged.
C.
the fewer varieties are sold.
D.
the lower is the price charged.
E.
None of the above.
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