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【简答题】
稳压管稳压电路,管一定要跟一个( )串联,管工作在( )偏状态。
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【简答题】传说中我国最早的学校叫做“()”，它出现在原始社会后期的虞舜时期。
【单选题】His family __________ all very well. His family __________ a 'five good' one. [ ]
A.
are; is
B.
is; is
C.
are; are
D.
is; are
【简答题】中国最早的学校叫做__________
【单选题】His family members gave some examples of_____ his drinking and smoking had affected the family.
A.
that
B.
why
C.
how
D.
what