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【单选题】
风向频率玫瑰图中实线表示( )风向。A.
冬季
B.
全年
C.
夏季
D.
春季
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反馈参考答案：
举一反三
【简答题】The UN Security Council is made up of five permanent members and ______ non-permanent members.
【单选题】某一个硅二极管当正向电压为0.7V时,测得它的正向电流为10mA,若正向电压增大到0.77V(即增加10%)时,正向电流约为( )。
A.
10mA
B.
11mA
C.
20mA
D.
100mA
【单选题】The Social Security Retirement Program is made up of two trust funds, ______ could go penniless by next year.
A.
the larger one
B.
the larger of which
C.
the largest one
D.
the largest of which
【单选题】The s of Sept. 11 have ratcheted up security at American airports to the highest level ever, according to a spokesman for Transportation Secretary Norman Mineta. But to say there is plenty of roo...
A.
using false ID
B.
helping others in smuggling
C.
being in the US illegally
D.
denying or not mentioning past crimes
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