__________________ (Once in a while / For a moment or two) he hesitated, embarrassed and seemingly at a loss for words. Then he answered the question in a low voice.
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参考答案:
举一反三
【单选题】The passage suggests that ______.
A.
the previous economic models are still applicable
B.
an extremely low jobless rate will lead to inflation
C.
a high unemployment rate will result from inflation
D.
interest rates have an immediate effect on the economy