The traditional way to ensure data security is by ______.
A. applying for cloud computing
B. installing firewalls and antivirus programs
C. decreasing the chances for hackers
D. using a handful of hardwares and softwares
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The authors attitude towards Darwin Deleted can be generally described as______.
A. approving
B. skeptical
C. indifferent
D. critical
According to Bowler,attributing two world wars to Darwinism is______.
A. a shallow viewpoint
B. a profound insight
C. a reasonable account
D. an untested excuse
This passage is mainly to______.
A. give the answers on the safe amount of vitamin D intake
B. introduce the disagreements over the Vitamin D intake and the general knowledge about Vitamin D
C. present her own questions on medicine and ask for help
D. show off her knowledge on child-care
What can be inferred from Para. 2？
A. There is a universal agreement on the safety level for the amount of Vitamin D intake.
B. Few researches on the amount of Vitamin D intake have been carried out.
C. Vitamin D belongs to the category of hormone.
D. Vitamin D is only useful for retaining the bone.
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