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【判断题】
在逼近临界过程中,提升控制棒时中子计数率增为2倍就应暂停提棒。A.
正确
B.
错误
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举一反三
【单选题】Now _____ understanding of climate change is no longer limited to ____ small group of scientists or environmentalists.
A.
/ ; a
B.
an ; a
C.
the ; the
D.
a ; /
【单选题】糖尿病常有各种并发症，下列哪项不属于微血管病变（）。
A.
糖尿病视网膜病变
B.
糖尿病性周围神经病变
C.
糖尿病肾病
D.
动脉粥样硬化性心脏病
E.
糖尿病性自主神经病变
【单选题】According to the passage, the dynamics of small group economies differ from those of large group economies in that
A.
the members of small groups tend to have a greater degree of social regularity than the members of large groups
B.
people in small groups carry an advantage in the arena of exchange because they are tied by social obligation
C.
the manufacturer of a commodity in a small group economy is more likely to be known by the members of the group
D.
the people who contribute to the production of a gift are less essential to small groups than those who exchange commodities are in large groups
E.
a system of social obligation diminishes the number of parties necessary to a gift-giving transaction
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