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【单选题】
( )特点是较为平民化,每个人都可以根据自己的财力进行投资。A.
艺术品
B.
古玩
C.
纪念币
D.
邮票
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反馈参考答案：
举一反三
【单选题】A person can be awakened easily from which stage of NREM sleep ?
A.
stage I
B.
stage II
C.
stage III
D.
stage IV
【简答题】At this stage at least one on-the-spot survey has to be conducted in person to assess the local situation and establish distribution.
【单选题】A person in the recovery stage will _________.
A.
have anxiety about moving to their home country
B.
complain about being at home
C.
become more adjusted to the host country
D.
feel at ease at home
【单选题】两个同频率正弦交流电流 i 1 、 i 2 的有效值分别为4A和3A，当 i 1 + i 2 的有效值为 5A 时， i 1 与 i 2 的相位差是 （ ）。
A.
00;
B.
900;
C.
1800;
D.
-1800;
【单选题】An old person can reach a stage where_____
A.
the things he cares for will continue
B.
he wishes to die while till at work
C.
his life will continue
D.
he looks forward to death
【单选题】Which stage of NREM sleep can a person be awakened from?
A.
stage I
B.
stage II
C.
stage III
D.
stage IV
【单选题】两个同频率正弦交流电流 i 1 、 i 2 的有效值分别为4A和3A，当 i 1 + i 2 的有效值为 1A 时， i 1 与 i 2 的相位差是 （ ）。
A.
00;
B.
900;
C.
-900;
D.
1800;
【单选题】A person who suffers from stage fright is easily intimidated by a large audience.
A.
inspired
B.
applauded
C.
frightened
D.
expelled
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