单项选择题

How does the new vaccine work

A. By activating an immune response.
B. By selecting one or two genes.
C. By awaking the entire parasite.
D. By deactivating the entire parasite.
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单项选择题
When was the world’s 7 billionth baby born
A. Just after midnoon on Saturday.
B. Just after midnight on Saturday.
C. Just before midnoon on Sunday.
D. Just before midnight on Sunday.
单项选择题
As to bank-online, which of the following statements is INCORRECT
A. It’s very secure.
B. It’s better to use your own bank’s website.
C. Consumer service representatives are the ones to consult.
D. It can not save you a big amount of time.
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