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【简答题】
Replace the underlined words with the correct form of the words and expressions in the box. You may need to make other changes. alliance characterize clash economy governor liberal liberating 1 There were fights between police and protestors outside the US Embassy. ( ) 2 The two parties formed a political arrangement to work together to respond to the problem. ( ) 3 I’ve always considered myself as someone who is tolerant of other people’s ideas . ( ) 4 The chief official of an American state has a lot of power. ( ) 5 The financial situation of Western European countries rapidly improved in the 1960s. ( ) 6 The 1960s were associated with a new type of popular music. ( ) 7 For many people, listening to their music was an experience which made them feel free . ( )
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【简答题】集合{1,5,7}有 个子集,有 个真子集
【单选题】根据某只晶体管的各极对地电压分别是 V B = -6.3V , V E = -7V , V C = -4V ,可以判定此晶体管是
A.
NPN 管,饱和区
B.
、PNP管,放大区
C.
PNP 管,截止区
D.
NPN 管,放大区
【简答题】如下图所示电路,已知I1=25mA,I3=16mA,I4=12mA,求支路电流I5= mA。
【简答题】如下图所示电路,已知I1=25mA,I3=16mA,I4=12mA,求支路电流I6= mA。
【单选题】不能激活补体替代途径的物质是( )
A.
细菌内毒素
B.
酵母多糖
C.
葡聚糖
D.
凝聚的IgA
E.
甘露聚糖
【单选题】食品安全管理体系标准不适用于()
A.
评价组织提供的产品的食品安全风险控制能力是否满足顾客的要求
B.
评价组织满足顾客,法律法规和组织自身要求的能力
C.
第二方认定
D.
第三方认证
【单选题】不能激活补体替代途径的物质是
A.
细菌脂多糖
B.
酵母多糖
C.
肽聚糖
D.
凝聚的IgA
E.
甘露聚糖
【判断题】ATM是一种局域网技术,只适用于局域网。
A.
正确
B.
错误
【单选题】包装丢弃后不会造成环境污染的是( )
A.
适度包装
B.
过度包装
C.
绿色包装
D.
复合包装
【单选题】根据某只晶体管的各极对地电压分别是V B =7v,V E = 6.3v,V C =9.3v,可以判定此晶体管 ,处于 。 ( )
A.
NPN管,饱和区
B.
PNP管,放大区
C.
PNP管,截止区
D.
NPN管,放大区
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