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【简答题】
Scientific ( ) such as high-tech devices help business travelers stay plugged in to work.
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刷刷题刷刷变学霸
举一反三
【单选题】The city of Petra is aptly named because it is______.
A.
located in Jordan
B.
carved from the red rock surrounding it
C.
a United Nations World Heritage Site
【单选题】The city of Petra is in danger from_____.
A.
natural erosion
B.
graffiti
C.
a substance sprinkled on the rocks
【单选题】Being declared a United Nations World Heritage Site means that______.
A.
it is subject to erosion and other types of natural decay
B.
financial support is provided to preserve the place
C.
it is endorsed as a great place to visit
【单选题】Based on their internships, the two students are interested in_____.
A.
historical preservation
B.
geology
C.
jordan
【单选题】The Great Wall of China consists of actual stone wall, as well as boundaries formed from_____.
A.
fences
B.
red rock
C.
hills and rivers