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【综合知识速答题展示】科学技术类

2008-7 On a clock, how many circles does the short hour hand make in a day?(B)

A.     1  B. 2  C. 12  D. 24 

 

2009-7 Look at the table of numerals and their corresponding Braille patterns which appear on RMB banknotes. What number should be the question mark be? (100)

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2010-9 Normally, the pH of the human body is between 7.35 to 7.45, that is, it is alkaline (碱性). This is why a mosquito’s bite which releases acid will cause its itching. What should we put on the bite to ease itching?  (B)

A.     Vinegar  B. Soap  C. Salt

 

2010-17 Through a wireless network, this technology allows us to transfer information within 10 meters. We most often use it to transfer information between cell phones. On our phones, we see the software indicated as in the following picture. What is this technology called? (A)

A.     Bluetooth  B. X-ray  C. USB 

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