单项选择题

The development of the transistor and integrated circuits revolutionized the electronics industry by allowing components to be packaged more (densely).

A．compactly
B．inexpensively
C．quickly
D．carefully
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单项选择题
The stories of Sarah Orne Jewett are considered by many to be more (authentically) regional than those of Bret Harte.
A．elegantly
B．genuinely
C．intentionally
D．thoroughly
单项选择题
He is sure of the coming of investment (boom) after adopting the new investment policies.
A．decrease
B．increase
C．influence
D．preparation
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