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1992年，我国以“甩掉图板”为突破口，启动了CAD应用工程。()

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&8226;You will hear five short recordings. Each speaker is saying what a manager must do to achieve success.
&8226;For each recording, decide which is the most important action for that speaker.
&8226;Write one letter (A-H) next to the number of the recording.
&8226;Do not use any letter more than once.
&8226;After you have listened once, replay each recording.

A. sort out staff disagreements
B. delegate tasks fairly
C. obtain all the facts
D. develop a range of strategies
E. establish clear goals
F. carry out regular planning
G. clarify all job descriptions
H. act immediately

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1992年，我国以“甩掉图板”为突破口，启动了CAD应用工程。()

正常的性别比例是1比1.18。()

线性表中的数据元素可以是一个数、一个符号，也可以是一个线性表。()

细胞培养、细胞融合、单克隆抗体都属于生物技术范畴。()