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【单选题】
I ___________ a teacher. She ___________ a nurse. They ___________ doctors. [ ]A.
am, is, are
B.
am, is, is
C.
is, is, are
D.
is, are, are
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举一反三
【单选题】Here are some of our latest brochures with _______ information on all our product ranges.
A.
best
B.
newest
C.
up-to-date
【多选题】线性分组码具有( )性质。
A.
循环性：码组中的码元位置可以任意按次序循环，所得编码仍是许用码组
B.
封闭性：任意两个许用码组相加后，所得编码仍是许用码组
C.
最小码距 d min 等于除全零码组以外的最小码重
D.
系统性：编码生成的码组中，原信息码元的位置关系保持不变
【单选题】Here are our price lists. You'll see that our prices are most attractive.
A.
recently
B.
last
C.
latest
D.
newly
【简答题】翻译：Here are our latest price sheet. You will see that our price is the most competitive.
【简答题】Fill in the blanks with proper words in correct form. popular specialize particular catalogue sample explore 1. We are a state-owned company _________in computers. 2. This type of mobile phone is qui...
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