单项选择题

The sentence "Since 1960 restoration techniques have progressed by ieaps and bounds" means the following EXCEPT ().

A. since 1960 great improvements have been made in restoration techniques
B. since 1960 restoration techniques have progressed considerably
C. since 1960 restoration techniques have improved quickly and greatly
D. since 1960 restoration techniques have progressed incessantly

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单项选择题

Just as a book is often judged () by the quality and appearance of its cover, a person is judged immediately by his appearance.

A.previously
B.uniquely
C.outwardly
D.initially

单项选择题

As we all know, thick forests are the natural () for birds, animals and insects, and we must forbid cutting trees without any limitation.

A.habitat
B.resort
C.residence
D.refuge