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搜题
【单选题】
Internet plus, We-media, paid knowledge and sharing economy were known to the Chinese public_____.A.
since 1994 when China was first connected to Internet.
B.
since 2004 when social-networking built a bridge between the websites and netizens.
C.
since 2012 when people’s interaction with the Internet became much closer.
D.
since 2016 when sharing economy was booming.
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举一反三
【单选题】用n+1位字长(含一位符号位)表示原码定点整数时，所能表示的数值范围是(1)；用n+1位字长(含一位符号位)表示原码定点小数时，所能表示的数值范围是(2)。
A.
0≤|N|≤2n-1-1
B.
0≤|N|≤2n-1
C.
0≤|N|≤2n+1-1
D.
0≤|N|≤2n+2-1
【简答题】有2%蚕丝,10%精梳羊毛,33%粘胶短纤和55%精梳棉材料织成的匹状,色织平纹机织物(190克/平方米)