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【判断题】
交变磁场的频率f越低,电涡流的渗透深度就越浅。A.
正确
B.
错误
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举一反三
【单选题】Among the freshmen at UCLA ______ thought themselves as Jewish.
A.
most
B.
93% of those whose parents were both Jewish
C.
62% of those only whose father were Jewish
D.
15% of those only whose mother were Jewish
【单选题】1935年10月,( )在法国巴黎发表了《为抗日救国告全国同胞书》呼吁全国人民起来捐弃前嫌,共同抗日。
A.
中共中央
B.
中共驻共产国际代表团
C.
红一方面军军委
D.
红军总前委
【单选题】There is much bitter feeling among those who, deprived of their social security benefits, queued at an eating hall and registered for jobs available.
A.
Y
B.
N
C.
NG
【单选题】Among those tanning customers, it is estimated that most of them are ______.
A.
kids
B.
the old
C.
women
D.
men
【单选题】Many political leaders attended the conference and among those present ____ the foreign minister and his wife.
A.
were
B.
included
C.
had
D.
remained
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