什么是都市区?确定都市区地域标准什么?简述都市区空间的基本特征。
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We have to face up to the ______ realities of life sooner or later.
A. feedback
B. harsh
C. grading
D. outstanding
The proposal has ________ a lot of interest.
A. returned
B. thought
C. generated
D. considered
This system ________ additional financial burdens on many people.
A. imposes
B. compares
C. exposes
D. deducts