单项选择题

It has been stated in the passage that the growth of specialist societies and periodicals has helped scholars to ______.

A．spend less time traveling
B．cut down research costs
C．develop their ideas more quickly
D．keep up with current developments
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单项选择题
What is the most important one among the realities listed in the passage
A．New vulnerabilities will be introduced into your environment every day.
B．The manager educates employees about properly configuring firewalls and intrusion detection systems for their PCs.
C．Managers have more responsibility than ever.
D．Security managers are asked to support increasing degrees of network availability and access.
单项选择题
What is the attitude the author has towards eating meat
A．Positive.
B．Negative.
C．Indifferent.
D．Biased.
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