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【判断题】
普通雷暴单体在塔状积云阶段开始产生降水。A.
正确
B.
错误
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举一反三
【简答题】The United States has turned itself from a hegemonic power to a guardian of democracy by the introduction of ______ to the Middle East.
【多选题】关于声级计中的计权网络，说法正确的是( )
A.
计权网络能模拟人耳的听觉特性
B.
计权网络能模拟人耳听觉在不同频率有相同的灵敏性
C.
通过计权网络测得的声压级为客观物理量的声级计
D.
通过计权网络测得的声压级是经过听感修正的声级计
E.
通过计权网络测得的声压级叫做计权声级或噪声级
【简答题】2 reading logs will be submitted.
【简答题】The CPU itself has two parts : and .
【单选题】声级计中的频率计权网络有A、B、C三种标准计权网络，对于这三种标准计权网络叙述正确的是()。
A.
三者的主要差别是对声音低频成分的衰减程度，B衰减最多，A次之，C最少
B.
三者的主要差别是对声音低频成分的衰减程度，C衰减最多，B次之，A最少
C.
三者的主要差别是对声音低频成分的衰减程度，A衰减最多，C次之，B最少
D.
三者的主要差别是对声音低频成分的衰减程度，C衰减最多，A次之，B最少
E.
三者的主要差别是对声音低频成分的衰减程度，A衰减最多，B次之，C最少
【单选题】The government has promised to commit itself to ________ peace.
A.
keep
B.
be kept
C.
keeping
D.
being kept
【单选题】What has the Academy asserted to defend itself against such criticism?
A.
It has taken into consideration the opinions and suggestions from various parts of the world.
B.
Its physical distance from the world's literary capitals serves to protect itself from outside influence.
C.
No politics, whether international or regional, has ever interfered with its process of selection.
D.
Its only standard of selection is true writing ability.
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